I find the redesignd by jsb love my k1 in .22, they shoot nice at 1023 to 1026 fps, I had the reg set to 140 or 14 for some and the power wheel on 27 clicks out. So i opened the power wheel fully then dropped the reg pressure untill it was 30fps above the required speed like you advised then turned the power wheel untill i gained 1025 fps And yes i always push the pellet all the way forward in the magazine. I little tip if you accidently leave the magazine rotating lever up and recieving a blow back, if this happens the presure from the plenham prevents the mag from moving and it is locked against a pellet between the mag and barrel, i found that if you empty the plenem the mag will become loose alowing me to gently push a plastic rod down the barrel and gently tap the pelet back into the magazine, this will free the magazine. Then re set your regulator and your good to go. This way it doesnt require a gun strip down. Great vid gregor, this information works perfect.
hi gregor thanks for all your information from the Huben K1, I must say I have followed exactly your instructions and it works perfectly, JSB monster redesigned at 30 meters one hole 7mm, Huben slugs perfect, must say my Huben K1 2019 from the beginning all beautiful groups showed, it is getting better and better, in the coming weeks only 100m + will shoot only the slugs, thanks again for all your Huben videos, very educational
Great information Gregor, I'm also a sports shooter, not a hunter. your videos are a great help to improve the performance of my K1. Greetings from Santiago de Chile
Alejandro disculpa la demora en responder estoy con bastante pega. ningún problema en compartir mis experiencia, también he tenido problemas de precisión. he logrado algunos avances pero por falta de tiempo no he podido continuar.
oreste430 buenisimo, como me contacto contigo?, Buscame en facebook Alejandro Rene Ortiz Salas, estamos conversando, yo también he hecho varias pruebas y estoy en contacto can varios otros dueños de HUBEN.
super video .. I have eventually received my Huben K1 mk 2.in 5.5mm from Ballista Spain .Francisco. your video on setting up is excellent .. I will need to order a crony to achieve the set up you are recommending .
Hi. Steven again. Many thanks for your advice. Raising the reg to 190 bar fixed my issue. Again thanks for your knowledge and swift reply. How can I pay you? Again, many thanks from Florida
Yeah, I want to shoot one too. I am getting one but it is delayed and I doubt it is going to come till the end of the year, probably in the beginning of next year... I cannot wait to test it and of course, I will make a video when I get it...
@@gregorkamensek3923 very useful and informative video... I am going to buy one of these guns from huben ... how do you compare .22 vs . 25..... as far as I know the readily available pallets in .25( in most of countries) jsb are 33.95 grains, where as in .22 Jumbo beast have also the same weight of 33.95......so what's the difference between. to .22 and .25 and which one will be recommended?
Hi Gregor I am using MP molds slugs for Huber K1 V2, after 6-8 shots I get air dumbs, regulator is set at 160 bar and adjuster is 5 clicks from fully closed. max filling is 320bar.
Beautiful review, but I prefer the Hatsan Hercules gun over the Hopen Hercules gun. Its strength is 25 green, 85 joule, and 33 green. It has 100 joules. Its system is interlock system, and the Hubin safety has no safety and its semi-automatic system and the Hercules without a regulator, but its shooting is close to the speeds like the regulator.
Gregor, I was wondering if a copper coated pellet, like Baracuda Power would help the gun's accuracy? Would the copper pellets would help protect the pellets from getting scraped up from the magazine rotation?
Hello sr, I have not seen the huben too much do you recommend the huben k1? I’m looking for a hunting rifle so I can shoot slugs and get power but I also need accuracy over 120 yards
Hobben K1 rifle needs a monthly maintenance for the guns and also for the regulator and its maintenance system is complicated. The hatsan hercules need no maintenance and the maintenance system is very easy and powerful on a lead 36 green slings give me a speed of 1050 wit almost 120 joules
Thanks for this video Gregor. I don't own a Huben but your advise about tuning the power wheel to the regulator I think applies tp any airgun that comes with those features.
hi gregor i finally got a huben k1and i had accuracy problems with pellets . however after polishing the mag and lining up the magazine groves with the barrel groves and lowering the operating pressure and loading the mag as u suggested its shooting very nice now . thanks wish they could tell you this when you buy the gun . I am still waiting for the slugs so that i can test bullets and huben pellets. Do you know when huben will release their huben pellets . they are not available to the public as far as I Know. Also I noticed that the twist rate in the Mag and the twist rate of the barrel do not seem to be the same it looks like the Magazine has a slower twist rate to that of the barrel is this normal? . thanks for the videos they helped alot of huben owners
Thank you. You are right, the magazine does not have any twist at all. I do not have any info about when the Huben pellets will be available, but Huben is sending me their mold... and I intend to make a video when I get it. Not sure yet if they intend to sell the mold as well but we will see...
Hello Gregor - Regarding the 2x2 rearrangement of the disk spring washers (referenced at ~9:30 stamp), do you suggest arranging all 27 disks 2x2 or to arrange some of them that way and possibly leave some washers out? I didn't understand from just this video what you were referring to. However, I saw a K1 assembly video by Fred Li that includes a diagram showing 3x3, 3x3, 3x3 = 24 + 3 = 27 washers. Do you mean all 27 washers should be arranged: 2x2, 2x2, 2x2, 2x2, 2x2, 2x2 = 24 +3 = 27 or something else?
Hi. It is not really important how many washers you use, it theory, the more the better but you have limited space. So just use as many as you can fit. What is important is that you only use same configuration, so if you will set it up in 2x2, it should be only in 2x2 and in that case, you of course cannot use an odd number of washers... BTW: only go to 2x2 configuration if you want to shoot a low pressures. If you intend to use higher pressures, then 3x3 is still a better option.
Follow-up@@gregorkamensek3923Since I am a newbie, if I wanted to stick with the stock 3x3 set-up and still shoot as accurately as possible, how would you define the "low pressures" range associated with normal ~15-18 grain pellet weights? Would you estimate that range to be between 10 ~12 MPa (where the 2x2 set up may benefit)? Only asking since I may then wish to stay just above that pressure range (say 12-14 MPa) with slightly heavier pellets (say 20-23 grain).
@@todddavidmoore You can still get up to 200 bars on the regulator with 2x2. Benefits start at pressures below about 110 bars, but each regulator will behave differently. My suggestion is as follows. If you set the reg (with current configuration) to about 100 bars and set the power to shoot 18 grain JSB's at about 900 fps and have relative consistent velocity, don't change anything; or in other words, change it only if you have velocity inconsistency with those settings. There are other reasons for bad accuracy, when it comes to regulator, your measure is consistency...
It is possible to go sub MoA at 50 meter and also beyond (sub MoA at 100 + meters) but the problem is that there is not mass produced slug that will do that at the moment... Soon :) But you are right, you have to use slugs, pellets will not do it...
Hi Gregor. Apologies if you have covered this but the regulator screw can be safely turned to increase AND decrease the regulator pressure at any time with the gun still being full of high pressure air correct? Also, does the regulator screw have a stop when you screw it out or will it eventually fall out and depressurize the whole gun if you keep turning it? I'm getting a K1 tomorrow :D
Yes, unlike FX impact, you can safely increase or decrease the screw without damaging the gun. If you decrease, you will of course have to shoot a few times in order to see the effect but you will not damage it. The screw does not have a stop, it will go fully out. When the gun if pressurized (unregulated as well as regulated side) and you start to decrease the pressure (unscrewing the screw) it will come to a point where it will start to leak out the air (slowly) from the regulated side (plenum). This is a good way to either set lower pressure without dry fire or draining the gun for service: - Reducing regulated pressure: unscrew the screw until the air starts to escape put and pay attention to the pressure gauge. When the pressure falls just under the desired pressure, quickly turn the screw for about 1/2 of revolution to stop the draining. After this lovely increase the pressure (screw the screw back in) until you reach the desired pressure. As in darning procedure no air will be lost for the unregulated chamber in this process. - Draining the gun for service: simply unscrew the screw until all the pressure is drained form the regulated side. this will happened before you reach the end of the screw thread. the unregulated side will stay pressurized even if you fully remove the screw and there will be no danger. this is what I do when I disassemble the gun for service, no need to wast air and drain the unregulated side - unless you need to service the cylinder in which case you can disassemble the gun and then open the regulator to slowly drain the unregulated chamber
One more time without typing mistakes... LOL Yes, unlike FX impact, you can safely increase or decrease the screw without damaging the gun. If you decrease, you will of course have to shoot a few times in order to see the effect but you will not damage it. The screw does not have a stop, it will go fully out. When the gun is pressurized (unregulated as well as regulated side) and you start to decrease the pressure (unscrewing the screw) it will come to a point where it will start to leak out the air (slowly) from the regulated side (plenum). This is a good way to either set lower pressure without dry fire or draining the gun completely for service: - Reducing regulated pressure: unscrew the screw until the air starts to escape out and pay attention to the pressure gauge. When the pressure falls just under the desired pressure, quickly turn the screw in the other direction (clockwise - screw it in) for about 1/2 of revolution to stop the draining. After this slowly increase the pressure (screw the screw back in) until you reach the desired pressure. As in darning procedure no air will be lost from the unregulated chamber in this process. - Draining the gun for service: simply unscrew the screw until all the pressure is completely drained form the regulated side. this will happened before you reach the end of the screw thread. the unregulated side will stay pressurized even if you fully remove the screw and there will be no danger. this is what I do when I disassemble the gun for service, no need to wast air and drain the unregulated side - unless you need to service the cylinder in which case you can disassemble the gun and then open the regulator to slowly drain the unregulated chamber.
@@gregorkamensek3923 Thanks for the detailed explanation Gregor, this is exactly the info I was looking for. I appreciate you taking the time to explain in this detail. Cheers :)
Hi Gregor, I tried to unscrew the power wheel today all the way as you suggested. I shot at about 140 bar on the regulator and the gun dumped all its air out the barrel. I disassembled the gun as per your disassembly video and found that the silver screw that the power wheel screws into the brass fitting attached to the action had completely fallen out. I put the silver screw back in and assembled the gun and everything was fine.It seems the power wheel should not be fully opened? Is this normal?
@@jeanvanrooyen6004 Yes that is normal. For lower pressures (110 - 150 bars) especially if you shoot with heavier pellets/slugs, the power wheel should not be fully opened. For higher pressures, you can fully open it. In any case, it you get a big air dump, just turn the power wheel down.
very useful and informative video... I am going to buy one of these guns from huben ... how do you compare .22 vs . 25..... as far as I know the readily available pallets in .25( in most of countries) jsb are 33.95 grains, where as in .22 Jumbo beast have also the same weight of 33.95......so what's the difference between. to .22 and .25 and which one will be recommended? I suppose.22 will carry more pallets than. 25. but I want to hear from the veterans. please do guide.
Hi. Huben has a new series/version of K1 now. I haven't had a chance to test them yet but when I do, I will make a video. So it is not really appropriate to give you any suggestion as the gun you will get might work quite a bit different than the ones I have.
@@gregorkamensek3923 ... I appreciate your concern... How ever what would you suggest from the prevailing model which you have experienced, which one is better .22 ( with 33.95 grains pallets) or .25 calibre ( with 34 grains)... is there any difference in the power of 2 guns? Which one is better?
Great video, as always. I tried your method to open up power wheel and adjusting the regulator to achieve the ideal speed for pellets. But no matter how low I set the regulator, the speed isn't affected at all. 150 bar lets say 980fps on 90 bar still approx 980fps. The power wheel has been on a constant setting while adjusting the regulator (only one variable). The regulated plenum pressure gauge is changing with the setting on the regulator. But why doesn't affect the regulator the speed? Only the power wheel does change the speed. Any ideas whats going on?
Both those settings (power wheel and pressure) are interlinked. The power wheel needs to be opened further at higher pressures in order for the valve to be opened for the same amount of time. This is actually the same as on conventional unregulated PCP's, you will get a bell curve... The gun is however working very differently in both your pressure settings. With low pressure, the valve is opened much longer and the pellet acceleration in smaller and takes through almost all barrel length. With high pressure, the gun gives out very short but powerful pressure burst and the pellet is subjected to extreme acceleration at start but not much throughout afterwards in the rest of the barrel. The reason why the low pressure gives (or at least it should) better accuracy is because pellets are much more fragile than bullets / slugs and that extreme acceleration when the pellet is moving from magazine to the barrel causes damage to them and although the fly out of the barrel in the correct direction, the accuracy is lost because they start to spiral because they are damage and therefore not symmetrical anymore. I have a separate video that explains why pellets spiral...
BTW: if you will open the power wheel further (lets say 2,5 revolution), and use heavier pellets/slugs, you will see that the pressure does play significant role on power.
@@gregorkamensek3923 Thanks a lot for explaining. So altough to higher regulator pressure, the timing "circuit" is working tighter and therefor the speed does not necessarily go up (at least on lighter pellets). I really appreciate that you got time out of your day for writing me this explanation. Really appreciated. 🙏
Hi. I enjoy your vids. I have an issue with my 3 week old .22 cal huben k1 2020 .My huben won’t fire a shot. I’ve released the air and refilled it with air. Any suggestions?
I had the same problem when I received it. I took the valve out, lubricated the triggering mechanism and after that, it worked just fine. Not sure what is the reason for problems with your gun but maybe you can try raising the pressure to about 190 bars to see if the valve opens at higher pressures.
Hi Gregor, I am thinking of purchasing a K1 sent here in the UK. I would have to keep it at around 560 FPS to keep with the 12 Ftlb limit here. Would it be accurate and consistent at this power? Thank you in advance. I would value your expert advice.
yes, it should be accurate. The biggest issue with consistency for this low power would be the regulator. Due to its very high pressure efficiency, you would have to operate at about 100 bars. In my experiences, Huben regulator does work quite well at this power, but the plenum is fairly large... (you will understand this if you watch the new video about regulators that I will release soon) I would like to point out that I have not yet tested the new .22 cal that will have a different barrel.
hellow greg im back... hows life? hope u doin good. i got already huben k1 as ive mention u before . im shooting jumbo heavy jsb... arpund 11 to 12 mpa at regulator. how about powerwheel adjustment for longrange shoot? a bit high open or low close? i am asking bcoz i got already good accuracy when around 25 30yards but when i shoot longrange my accuracy is too wide
Yes, that is because the pellets are not stable. This is typical for guns that shoot out of the magazine. For longer range, you should try my slugs. You can either buy a mold and cast them yourself: www.mp-molds.com/product/552-mm-air-rifle-pellet-8-cav-mold/ or you can but the slugs directly here: www.ebay.com/itm/ZAN-Projectiles-slugs-pellets-22-5-52mm-100-count-35-5-gn/402577341111?hash=item5dbb7abab7:g:2msAAOSwX1xfvWzL You will have to increase the pressure to about 17 - 18 mpa and power wheel to about 2.5 revolutions from minimum
Hi Gregor, Great video!!!. Can I make you a question? Is normal that the huben lost air if you don't use it for one or two days? I fill it to 250 bar and in two or three days is in 100 bar. Thanks
Hello, thank you very much for your answer. I watched your video "How to make Huben K1 shoot pellets accurately" in French subtitled version. I had some problems lowering my huben (.22 black) to 10MPA, but it's still too strong so I lowered to 9MPA and 9.5MPA but the magazine does not move properly, also best for my H&N FTT in cal5.54 and 14.66gr would prefer 8MPA. I believe that to solve my problem I have to change a spring at the level of the magazine barrel. Did you make this video or do you have a solution please. Unless the solution is to go to a minimum of 18gr to shoot at 10mpa. Also I have leakage problems at these pressures, when I make adjustments I have the drive wheel between 16 and 20 (from 0 no air delivered). I had leakage problems, the safety blocked many times during the nanometer settings, the huben which locks has 13mpa of air reserve when it is regulated on 10mpa then a leak during reloading... I apologize for all these questions, but it's horrible for me to settle, if you can put me the links of your videos I will watch them carefully. Sincerely Ps: currently I have 3 pellets out of 19 that hit and the others that go anywhere in an unpredictable way, yet I push each pellet to the bottom of the magazine.
Hi. K1 tends to have issues with operation at those low pressures, that is to be expected. I would suggest you use the pressure at which it works at and turn down the power with power wheel. I know that this contradicts with my instructions in this video, but safe and reliable operation comes first... I still think that you will be able to get good accuracy, especially if you use heavier pellets. My favorites are JSB Monster redesigned, for those, you can use about 130 bars...
@@gregorkamensek3923 Hello, According to your recommendation, I tried 12MPA and 13 clicks, it is very precise (shoot after shoot) however I believe that the trajectory is bell-shaped and impossible to increase the number of clicks (to try to have a more linear curve ) because afterwards I lose the precision. On the other hand, it goes better with heavier pellets. I will continue to try. Thank you very much for your help. Cordially
@@arthur18a In my experience, for 25.39 grn. JSB Monster Redesigned pellets, I keep the regulator at 13 mpa maximum, and chronographed the speed at 935 fps with good accuracy even beyond 75 to 100 yds. I hope this comment might help you.
@@amadomata459 Hello, thank you for your comment. My Huben has a problem, I have to send it to after-sales service. I all find it very regrettable that huben is only compatible with the JSB brand. And for the slugs you have to mold them either yourself or pay a lot of money for them:/
I have made many of these, actually I have 3 airguns with those anti bounce now... I will probably make a video in the future however is is not an easy (and esthetic) mod...
My huben K1 Gen 5 is set at 160 bars , I am able to kill hogs of 200 to 300 lbs at 40 yds . FPS is 1080 36 grain Nielsen slugs. I bought the MP mold for the design you did I will test soon. Any advice.
Hi gregor i interested in this air gun and i want to buy it in my country i have questions as you know many things about this gun i learn the difference in appearance of version 1 and 2 with your clips and thanks a lot about it but my question is that u mention about difference in barrel and power in huben k1 for countries with power limit but i want to buy this gun but i want to buy a full power of it that can be ajusted between 8 to 100 joules can u tell me how i can recognize this two from each other?in our markets we have a lot of scam.god bless u.
The difference is in the logo. I speak about this in the first part of K1 V2 video... The logo on V1 is on the top, V2 is on the side... I doubt that there will be a sub 12ft-lbs version unless a distributor decides to make some mods to limit the power. All K1 I have seen so far are adjustable form 8 - 100 joules...
Yes, I know, I have the same huben k1 version 2. If I ask you how many shots you can do with such a fill of 200, 250 or 300 is because huben doesn't has a pressure gauge to know how much air is in the bottle. Also I appreciate to know when you recommend to refill the bottle because at certain moment it stop working. Thanks a lot for your patience.
That is part of what is special about Huben: pressure efficiency (meaning you need relatively low pressure to get relatively high power). That is the reason why it is possible to get such high powers with Huben even with relatively low pressures. I can actually get 1000 fps with only about 85 bars, but the efficiency is not that good anymore and the gun gets quite loud...
As I said in the video, this is the recipe for achieving max. accuracy. You can get 270 m/s with higher pressures as well but they will not be accurate.
I love your super video presentations .. over one month ago I approached Fred Kurver for an offer for a K1, scope and bullets . Fred must have misunderstood my offer and I am unable to buy a Huben K1 . Huben have communicated that Production has ceased while they are moving to new premises . I find it hugely disturbing that you are promoting a product which is impossible to buy. I have sold my four FX rifles and was looking forward to owning the Huben K1. but such is life . vindictive retailers are able to pick and choose who they sell their products to . Even punishing my offer of €2000 Euros with the withdrawal of a €100 euro discount . Your videos give a great insight into the tuning of the K1 I would have loved to have a K1 to follow your excellent advice .
Hi. Huben has never been on stock all the time. Sorry for your disappointment but I am not promoting huben, I am simply helping those who have it and giving tips. I am not payed by huben, but I do get free gear for testing. I am sure you will be able to buy it soon, and also it seem that they will also make some upgrades on it, so you might be even happy in the end and get a better gun... :)
I find the redesignd by jsb love my k1 in .22, they shoot nice at 1023 to 1026 fps,
I had the reg set to 140 or 14 for some and the power wheel on 27 clicks out.
So i opened the power wheel fully then dropped the reg pressure untill it was 30fps above the required speed like you advised then turned the power wheel untill i gained 1025 fps
And yes i always push the pellet all the way forward in the magazine.
I little tip if you accidently leave the magazine rotating lever up and recieving a blow back, if this happens the presure from the plenham prevents the mag from moving and it is locked against a pellet between the mag and barrel, i found that if you empty the plenem the mag will become loose alowing me to gently push a plastic rod down the barrel and gently tap the pelet back into the magazine, this will free the magazine.
Then re set your regulator and your good to go.
This way it doesnt require a gun strip down.
Great vid gregor, this information works perfect.
Keep making the great videos on the Huben K1. I love the gun and there is a lot to learn. Thanks so much for all your time and effort and knowledge.
Thanks to Gregor for this very valuable information we are looking forward to the dismantling film assembly regulator
hi gregor thanks for all your information from the Huben K1, I must say I have followed exactly your instructions and it works perfectly, JSB monster redesigned at 30 meters one hole 7mm, Huben slugs perfect, must say my Huben K1 2019 from the beginning all beautiful groups showed, it is getting better and better, in the coming weeks only 100m + will shoot only the slugs, thanks again for all your Huben videos, very educational
Happy to hear that :)
Thank you for this information
Very helpful. Thank you for sharing all you’ve learned about the Huben rifle.
Most excellent advice and competent. Love your vids. You are one of the best !
Another super informative video with great helpful info, looking out for more!
Thank you Gregor!
Great information Gregor, I'm also a sports shooter, not a hunter. your videos are a great help to improve the performance of my K1. Greetings from Santiago de Chile
Hola yo también tengo un Huben y soy de Chile, podríamos intercambiar experiencias
Hola de nuevo, podríamos comunicarnos para intercambiar experiencias con el Huben, yo he tenido bastantes problemas de precisión.
Alejandro disculpa la demora en responder estoy con bastante pega. ningún problema en compartir mis experiencia, también he tenido problemas de precisión. he logrado algunos avances pero por falta de tiempo no he podido continuar.
oreste430 buenisimo, como me contacto contigo?, Buscame en facebook Alejandro Rene Ortiz Salas, estamos conversando, yo también he hecho varias pruebas y estoy en contacto can varios otros dueños de HUBEN.
Alejandro Ortiz Salas como te va con el Huben? Estas contento con el? Te ha dado problemas en el tiempo que llevas usándolo?
super video .. I have eventually received my Huben K1 mk 2.in 5.5mm from Ballista Spain .Francisco. your video on setting up is excellent .. I will need to order a crony to achieve the set up you are recommending .
Hi. Steven again.
Many thanks for your advice. Raising the reg to 190 bar fixed my issue. Again thanks for your knowledge and swift reply. How can I pay you? Again, many thanks from Florida
Hi. I am happy you solved the issue with raising the reg pressure. No payment needed, this is my hobby and I like doing it :)
I was hoping you would have gave the regulator pressure setting and FPS for the Huben slugs or the cast slugs. Thanks I love your videos
You will find that in a newer videos... :)
We want to see a review of the Huben K1 in .25 calibre!!!
Yeah, I want to shoot one too. I am getting one but it is delayed and I doubt it is going to come till the end of the year, probably in the beginning of next year... I cannot wait to test it and of course, I will make a video when I get it...
@@gregorkamensek3923 very useful and informative video... I am going to buy one of these guns from huben ... how do you compare .22 vs . 25.....
as far as I know the readily available pallets in .25( in most of countries) jsb are 33.95 grains, where as in .22 Jumbo beast have also the same weight of 33.95......so what's the difference between. to .22 and .25 and which one will be recommended?
Hi Gregor
I am using MP molds slugs for Huber K1 V2, after 6-8 shots I get air dumbs, regulator is set at 160 bar and adjuster is 5 clicks from fully closed. max filling is 320bar.
Hope you explain that practically❤
Hi ... so if i am not going to use bullets .. what is in your opinion the best pressure to bset the regulator
I recommend that you set the regulator to 150 - 170 bars. Power wheel can be open as much as you like as long as you do not get any air dumps...
Beautiful review, but I prefer the Hatsan Hercules gun over the Hopen Hercules gun. Its strength is 25 green, 85 joule, and 33 green. It has 100 joules. Its system is interlock system, and the Hubin safety has no safety and its semi-automatic system and the Hercules without a regulator, but its shooting is close to the speeds like the regulator.
Excellent video thank you.
Help me how can i avail a huben K1 cal.22
Lastima no están traducidos tus videos al español, un gran abrazo desde Argentina!!!
Thank you and sorry. The only way to have Spanish subtitles is to turn on auto translate in the video...
Hi .. so if i am not going to use bullets . Is it ok to set to set regulator to 100 bar and use the power wheel ?
Gregor, I was wondering if a copper coated pellet, like Baracuda Power would help the gun's accuracy? Would the copper pellets would help protect the pellets from getting scraped up from the magazine rotation?
They might be. I have tested baracuda power and rabbit magnum power, but I did not get good results...
I've also tested both and not good results at 55 yards/50 mts.
can you adjust the regulator pressure without degasing the gun ?
yes
Hello sr, I have not seen the huben too much do you recommend the huben k1?
I’m looking for a hunting rifle so I can shoot slugs and get power but I also need accuracy over 120 yards
HI. Yes, K1 is one of the choices you have for that purpose, but you should study the market your self and find best suited gun for you.
Man I want this gun!
Me to but i just cant get hold of one . its out of stock everywhere
nice info dude , thankz
Hobben K1 rifle needs a monthly maintenance for the guns and also for the regulator and its maintenance system is complicated. The hatsan hercules need no maintenance and the maintenance system is very easy and powerful on a lead 36 green slings give me a speed of 1050 wit almost 120 joules
Thanks for this video Gregor. I don't own a Huben but your advise about tuning the power wheel to the regulator I think applies tp any airgun that comes with those features.
You are right, definitely :)
Only what I have written in previous posts; I know that they have .25 prototype. I hope I will get one for test :)
Thank you for video!
hi gregor i finally got a huben k1and i had accuracy problems with pellets . however after polishing the mag and lining up the magazine groves with the barrel groves and lowering the operating pressure and loading the mag as u suggested its shooting very nice now . thanks wish they could tell you this when you buy the gun . I am still waiting for the slugs so that i can test bullets and huben pellets. Do you know when huben will release their huben pellets . they are not available to the public as far as I Know. Also I noticed that the twist rate in the Mag and the twist rate of the barrel do not seem to be the same it looks like the Magazine has a slower twist rate to that of the barrel is this normal? . thanks for the videos they helped alot of huben owners
Thank you. You are right, the magazine does not have any twist at all. I do not have any info about when the Huben pellets will be available, but Huben is sending me their mold... and I intend to make a video when I get it. Not sure yet if they intend to sell the mold as well but we will see...
Gregory, do you know if Huben is developing a K1 type of gun in larger calibres?. 25, and .30 or even .35
Only what I have written in previous posts; I know that they have .25 prototype. I hope I will get one for test :)
I would love to have this tech in 35 cal.
I agree, but you would probably get only about 4 shots but they would probably at over 300 ft-lbs...
Hello Gregor - Regarding the 2x2 rearrangement of the disk spring washers (referenced at ~9:30 stamp), do you suggest arranging all 27 disks 2x2 or to arrange some of them that way and possibly leave some washers out? I didn't understand from just this video what you were referring to. However, I saw a K1 assembly video by Fred Li that includes a diagram showing 3x3, 3x3, 3x3 = 24 + 3 = 27 washers. Do you mean all 27 washers should be arranged: 2x2, 2x2, 2x2, 2x2, 2x2, 2x2 = 24 +3 = 27 or something else?
Hi. It is not really important how many washers you use, it theory, the more the better but you have limited space. So just use as many as you can fit. What is important is that you only use same configuration, so if you will set it up in 2x2, it should be only in 2x2 and in that case, you of course cannot use an odd number of washers... BTW: only go to 2x2 configuration if you want to shoot a low pressures. If you intend to use higher pressures, then 3x3 is still a better option.
Follow-up@@gregorkamensek3923Since I am a newbie, if I wanted to stick with the stock 3x3 set-up and still shoot as accurately as possible, how would you define the "low pressures" range associated with normal ~15-18 grain pellet weights? Would you estimate that range to be between 10 ~12 MPa (where the 2x2 set up may benefit)? Only asking since I may then wish to stay just above that pressure range (say 12-14 MPa) with slightly heavier pellets (say 20-23 grain).
@@todddavidmoore You can still get up to 200 bars on the regulator with 2x2. Benefits start at pressures below about 110 bars, but each regulator will behave differently. My suggestion is as follows. If you set the reg (with current configuration) to about 100 bars and set the power to shoot 18 grain JSB's at about 900 fps and have relative consistent velocity, don't change anything; or in other words, change it only if you have velocity inconsistency with those settings. There are other reasons for bad accuracy, when it comes to regulator, your measure is consistency...
If you watch the video at 1.25 speed it sounds better lol
hi gregor , a question how much shot can du the k1 with one fill and with 8 joule ?
I have no idea... I never use it at that low setting...
Gregor, great review.!! It's possible to shoot sub Moa groups at 50mts? Should I use slugs?
It is possible to go sub MoA at 50 meter and also beyond (sub MoA at 100 + meters) but the problem is that there is not mass produced slug that will do that at the moment... Soon :) But you are right, you have to use slugs, pellets will not do it...
Hi Gregor. Apologies if you have covered this but the regulator screw can be safely turned to increase AND decrease the regulator pressure at any time with the gun still being full of high pressure air correct?
Also, does the regulator screw have a stop when you screw it out or will it eventually fall out and depressurize the whole gun if you keep turning it?
I'm getting a K1 tomorrow :D
Yes, unlike FX impact, you can safely increase or decrease the screw without damaging the gun. If you decrease, you will of course have to shoot a few times in order to see the effect but you will not damage it. The screw does not have a stop, it will go fully out. When the gun if pressurized (unregulated as well as regulated side) and you start to decrease the pressure (unscrewing the screw) it will come to a point where it will start to leak out the air (slowly) from the regulated side (plenum). This is a good way to either set lower pressure without dry fire or draining the gun for service:
- Reducing regulated pressure:
unscrew the screw until the air starts to escape put and pay attention to the pressure gauge. When the pressure falls just under the desired pressure, quickly turn the screw for about 1/2 of revolution to stop the draining. After this lovely increase the pressure (screw the screw back in) until you reach the desired pressure. As in darning procedure no air will be lost for the unregulated chamber in this process.
- Draining the gun for service: simply unscrew the screw until all the pressure is drained form the regulated side. this will happened before you reach the end of the screw thread. the unregulated side will stay pressurized even if you fully remove the screw and there will be no danger. this is what I do when I disassemble the gun for service, no need to wast air and drain the unregulated side - unless you need to service the cylinder in which case you can disassemble the gun and then open the regulator to slowly drain the unregulated chamber
One more time without typing mistakes... LOL
Yes, unlike FX impact, you can safely increase or decrease the screw without damaging the gun. If you decrease, you will of course have to shoot a few times in order to see the effect but you will not damage it. The screw does not have a stop, it will go fully out. When the gun is pressurized (unregulated as well as regulated side) and you start to decrease the pressure (unscrewing the screw) it will come to a point where it will start to leak out the air (slowly) from the regulated side (plenum). This is a good way to either set lower pressure without dry fire or draining the gun completely for service:
- Reducing regulated pressure:
unscrew the screw until the air starts to escape out and pay attention to the pressure gauge. When the pressure falls just under the desired pressure, quickly turn the screw in the other direction (clockwise - screw it in) for about 1/2 of revolution to stop the draining. After this slowly increase the pressure (screw the screw back in) until you reach the desired pressure. As in darning procedure no air will be lost from the unregulated chamber in this process.
- Draining the gun for service: simply unscrew the screw until all the pressure is completely drained form the regulated side. this will happened before you reach the end of the screw thread. the unregulated side will stay pressurized even if you fully remove the screw and there will be no danger. this is what I do when I disassemble the gun for service, no need to wast air and drain the unregulated side - unless you need to service the cylinder in which case you can disassemble the gun and then open the regulator to slowly drain the unregulated chamber.
@@gregorkamensek3923 Thanks for the detailed explanation Gregor, this is exactly the info I was looking for. I appreciate you taking the time to explain in this detail. Cheers :)
Hi Gregor, I tried to unscrew the power wheel today all the way as you suggested. I shot at about 140 bar on the regulator and the gun dumped all its air out the barrel. I disassembled the gun as per your disassembly video and found that the silver screw that the power wheel screws into the brass fitting attached to the action had completely fallen out. I put the silver screw back in and assembled the gun and everything was fine.It seems the power wheel should not be fully opened? Is this normal?
@@jeanvanrooyen6004 Yes that is normal. For lower pressures (110 - 150 bars) especially if you shoot with heavier pellets/slugs, the power wheel should not be fully opened. For higher pressures, you can fully open it. In any case, it you get a big air dump, just turn the power wheel down.
Fun video, what are the settings for 25 caliber? 33grin
About 110 - 120 bars for pellets, power wheel adjusted to get about 260 - 270 m/s
very useful and informative video... I am going to buy one of these guns from huben ... how do you compare .22 vs . 25.....
as far as I know the readily available pallets in .25( in most of countries) jsb are 33.95 grains, where as in .22 Jumbo beast have also the same weight of 33.95......so what's the difference between. to .22 and .25 and which one will be recommended?
I suppose.22 will carry more pallets than. 25. but I want to hear from the veterans. please do guide.
Hi. Huben has a new series/version of K1 now. I haven't had a chance to test them yet but when I do, I will make a video. So it is not really appropriate to give you any suggestion as the gun you will get might work quite a bit different than the ones I have.
@@gregorkamensek3923 ... I appreciate your concern... How ever what would you suggest from the prevailing model which you have experienced, which one is better .22 ( with 33.95 grains pallets) or .25 calibre ( with 34 grains)... is there any difference in the power of 2 guns? Which one is better?
@@usman14599 Of course the .25 can deliver slightly higher power, but at the end, it is a thing of preference...
@@gregorkamensek3923 thanks for guiding.
Great video, as always. I tried your method to open up power wheel and adjusting the regulator to achieve the ideal speed for pellets. But no matter how low I set the regulator, the speed isn't affected at all. 150 bar lets say 980fps on 90 bar still approx 980fps. The power wheel has been on a constant setting while adjusting the regulator (only one variable). The regulated plenum pressure gauge is changing with the setting on the regulator. But why doesn't affect the regulator the speed? Only the power wheel does change the speed. Any ideas whats going on?
Both those settings (power wheel and pressure) are interlinked. The power wheel needs to be opened further at higher pressures in order for the valve to be opened for the same amount of time. This is actually the same as on conventional unregulated PCP's, you will get a bell curve... The gun is however working very differently in both your pressure settings. With low pressure, the valve is opened much longer and the pellet acceleration in smaller and takes through almost all barrel length. With high pressure, the gun gives out very short but powerful pressure burst and the pellet is subjected to extreme acceleration at start but not much throughout afterwards in the rest of the barrel. The reason why the low pressure gives (or at least it should) better accuracy is because pellets are much more fragile than bullets / slugs and that extreme acceleration when the pellet is moving from magazine to the barrel causes damage to them and although the fly out of the barrel in the correct direction, the accuracy is lost because they start to spiral because they are damage and therefore not symmetrical anymore. I have a separate video that explains why pellets spiral...
BTW: if you will open the power wheel further (lets say 2,5 revolution), and use heavier pellets/slugs, you will see that the pressure does play significant role on power.
@@gregorkamensek3923 Thanks a lot for explaining. So altough to higher regulator pressure, the timing "circuit" is working tighter and therefor the speed does not necessarily go up (at least on lighter pellets).
I really appreciate that you got time out of your day for writing me this explanation. Really appreciated. 🙏
Hi. I enjoy your vids.
I have an issue with my 3 week old .22 cal huben k1 2020 .My huben won’t fire a shot. I’ve released the air and refilled it with air.
Any suggestions?
I had the same problem when I received it. I took the valve out, lubricated the triggering mechanism and after that, it worked just fine. Not sure what is the reason for problems with your gun but maybe you can try raising the pressure to about 190 bars to see if the valve opens at higher pressures.
@@gregorkamensek3923 thank for your reply. I’ll try that. Your vids are awesome.
Hi Gregor, I am thinking of purchasing a K1 sent here in the UK. I would have to keep it at around 560 FPS to keep with the 12 Ftlb limit here.
Would it be accurate and consistent at this power?
Thank you in advance. I would value your expert advice.
yes, it should be accurate. The biggest issue with consistency for this low power would be the regulator. Due to its very high pressure efficiency, you would have to operate at about 100 bars. In my experiences, Huben regulator does work quite well at this power, but the plenum is fairly large... (you will understand this if you watch the new video about regulators that I will release soon) I would like to point out that I have not yet tested the new .22 cal that will have a different barrel.
brother i like a huben so much how can i get together
www.hubenairguns.shop/
Should i adjust the washer springs in the regulator when not shooting above 150bar or should i leave them 3 by 3?
Lately. I just use 3 by 3. I do not see any major difference if I use 2 by 2...
@@gregorkamensek3923 allright, thanks Gregor
hellow greg im back... hows life? hope u doin good. i got already huben k1 as ive mention u before . im shooting jumbo heavy jsb... arpund 11 to 12 mpa at regulator. how about powerwheel adjustment for longrange shoot? a bit high open or low close? i am asking bcoz i got already good accuracy when around 25 30yards but when i shoot longrange my accuracy is too wide
Yes, that is because the pellets are not stable. This is typical for guns that shoot out of the magazine. For longer range, you should try my slugs. You can either buy a mold and cast them yourself: www.mp-molds.com/product/552-mm-air-rifle-pellet-8-cav-mold/
or you can but the slugs directly here: www.ebay.com/itm/ZAN-Projectiles-slugs-pellets-22-5-52mm-100-count-35-5-gn/402577341111?hash=item5dbb7abab7:g:2msAAOSwX1xfvWzL
You will have to increase the pressure to about 17 - 18 mpa and power wheel to about 2.5 revolutions from minimum
Hi Gregor,
Great video!!!. Can I make you a question? Is normal that the huben lost air if you don't use it for one or two days? I fill it to 250 bar and in two or three days is in 100 bar. Thanks
No, it is not normal. You have a leak...
Ok, thanks for your quick response
the cylinder needs to be with how many bar so I can leave the valve at 180 bar?
I don't understand the question...
Hello, thank you very much for your answer.
I watched your video "How to make Huben K1 shoot pellets accurately" in French subtitled version.
I had some problems lowering my huben (.22 black) to 10MPA, but it's still too strong so I lowered to 9MPA and 9.5MPA but the magazine does not move properly, also best for my H&N FTT in cal5.54 and 14.66gr would prefer 8MPA.
I believe that to solve my problem I have to change a spring at the level of the magazine barrel.
Did you make this video or do you have a solution please.
Unless the solution is to go to a minimum of 18gr to shoot at 10mpa.
Also I have leakage problems at these pressures, when I make adjustments I have the drive wheel between 16 and 20 (from 0 no air delivered).
I had leakage problems, the safety blocked many times during the nanometer settings, the huben which locks has 13mpa of air reserve when it is regulated on 10mpa then a leak during reloading...
I apologize for all these questions, but it's horrible for me to settle, if you can put me the links of your videos I will watch them carefully.
Sincerely
Ps: currently I have 3 pellets out of 19 that hit and the others that go anywhere in an unpredictable way, yet I push each pellet to the bottom of the magazine.
Hi. K1 tends to have issues with operation at those low pressures, that is to be expected. I would suggest you use the pressure at which it works at and turn down the power with power wheel. I know that this contradicts with my instructions in this video, but safe and reliable operation comes first... I still think that you will be able to get good accuracy, especially if you use heavier pellets. My favorites are JSB Monster redesigned, for those, you can use about 130 bars...
@@gregorkamensek3923 Hello,
According to your recommendation, I tried 12MPA and 13 clicks, it is very precise (shoot after shoot) however I believe that the trajectory is bell-shaped and impossible to increase the number of clicks (to try to have a more linear curve ) because afterwards I lose the precision.
On the other hand, it goes better with heavier pellets.
I will continue to try.
Thank you very much for your help.
Cordially
@@arthur18a In my experience, for 25.39 grn. JSB Monster Redesigned pellets, I keep the regulator at 13 mpa maximum, and chronographed the speed at 935 fps with good accuracy even beyond 75 to 100 yds. I hope this comment might help you.
Also, once you are satisfied with the set up of your Huben, leave it be to do its best. Tinkering with the regulator might prove unwise. Best to you.
@@amadomata459 Hello,
thank you for your comment.
My Huben has a problem, I have to send it to after-sales service.
I all find it very regrettable that huben is only compatible with the JSB brand.
And for the slugs you have to mold them either yourself or pay a lot of money for them:/
Hi Gregor,
With your configuration and the jsb of 18 gr.....How many shots can you make? Thanks
Too many shots to count :)
Nice work. Can you make a hammer anti bounse device video for The BT65?
BT-65 already has a hammer anti bounce. Actually all Hatsans have it. I assume you would like to see a video of my custom hammer anti bounce?
Gregor Kamenšek yes sorry meant to say your coustom anti bounce device
I have made many of these, actually I have 3 airguns with those anti bounce now... I will probably make a video in the future however is is not an easy (and esthetic) mod...
My huben K1 Gen 5 is set at 160 bars , I am able to kill hogs of 200 to 300 lbs at 40 yds . FPS is 1080 36 grain Nielsen slugs. I bought the MP mold for the design you did I will test soon. Any advice.
Not sure what you would like davice for...
@@gregorkamensek3923On the process of casting the slugs mix of lead ?
@@danhenry8557 I use a 1:10 ratio of linotype to lead.
Hi gregor i interested in this air gun and i want to buy it in my country i have questions as you know many things about this gun i learn the difference in appearance of version 1 and 2 with your clips and thanks a lot about it but my question is that u mention about difference in barrel and power in huben k1 for countries with power limit but i want to buy this gun but i want to buy a full power of it that can be ajusted between 8 to 100 joules can u tell me how i can recognize this two from each other?in our markets we have a lot of scam.god bless u.
The difference is in the logo. I speak about this in the first part of K1 V2 video... The logo on V1 is on the top, V2 is on the side... I doubt that there will be a sub 12ft-lbs version unless a distributor decides to make some mods to limit the power. All K1 I have seen so far are adjustable form 8 - 100 joules...
Thanks. I ask you because I want to know if my configuration was likes yours.
Usually how much you inflate the rifle? 250 bar?
Depends what I have in the bottle :) My bottle goes to 300 bars, so I fill huben anywhere form 200 - 300 bars...
Yes, I know, I have the same huben k1 version 2. If I ask you how many shots you can do with such a fill of 200, 250 or 300 is because huben doesn't has a pressure gauge to know how much air is in the bottle. Also I appreciate to know when you recommend to refill the bottle because at certain moment it stop working. Thanks a lot for your patience.
I just shoot until I notice that the pressure on the gauge drops. The shot count depends also on power setting...
In the power setting you show in this video
I have not count the shots. A lot!
Where can we find the optimum fps for different pellets?
Stick to around 900 fps for lighter pellet and up to 1000 fps for heavy...
This gun is made from Which country, i think this is very good hunting airgun for me
China
Hi. Wy I need to set my regulator to 125 bars to get 900 fps? I have a kalibrgun cricket in .22.
That is part of what is special about Huben: pressure efficiency (meaning you need relatively low pressure to get relatively high power). That is the reason why it is possible to get such high powers with Huben even with relatively low pressures. I can actually get 1000 fps with only about 85 bars, but the efficiency is not that good anymore and the gun gets quite loud...
Good morning, will I have to leave my regulator on that adjustment to achieve speed of 270m / sjb heav18 graisn?
As I said in the video, this is the recipe for achieving max. accuracy. You can get 270 m/s with higher pressures as well but they will not be accurate.
You vere probably talking about Criket: yes you will have to leave it at 125bars...
السلام عليكم يااخي هذة بندقية مرعبة تصور ممكن انتصيب هدف حجمه اثنين ونصف سانتي على بعد 102 متر فد شي خيالي سبحان الله
Hi Gregor, how are you? It's been a while since we last spoke. Any news about Huben if they are going to make a new improved version?
Best regards
As far as I know, the ones they are shipping right now are the final version... Not sure what version that is though.
Are they sending one to you? When would it be coming to you?
They did mentioned that they will be sending one to me. Not sure when though...
Ok, when you get it please tell me if there is any improve.
Thank you very much
Of course...
I love your super video presentations .. over one month ago I approached Fred Kurver for an offer for a K1, scope and bullets . Fred must have misunderstood my offer and I am unable to buy a Huben K1 . Huben have communicated that Production has ceased while they are moving to new premises . I find it hugely disturbing that you are promoting a product which is impossible to buy. I have sold my four FX rifles and was looking forward to owning the Huben K1. but such is life . vindictive retailers are able to pick and choose who they sell their products to . Even punishing my offer of €2000 Euros with the withdrawal of a €100 euro discount . Your videos give a great insight into the tuning of the K1 I would have loved to have a K1 to follow your excellent advice .
Hi. Huben has never been on stock all the time. Sorry for your disappointment but I am not promoting huben, I am simply helping those who have it and giving tips. I am not payed by huben, but I do get free gear for testing. I am sure you will be able to buy it soon, and also it seem that they will also make some upgrades on it, so you might be even happy in the end and get a better gun... :)
the price is too much....any idea why its so expensive?
Yes, I know why. It is the most technological advanced airgun in the market.
Please me
👏👏👏👏👏