Excellent video, I have tuned my HW95 myself.I have drilled my piston to lighten it, added a 12mm short stroked kit, polished all internals etc etc. The result is a fantastic hunting tool.
I have an 8 joule, break barrel air rifle. The spring has a diameter of OD=16.6 mm and it is very difficult to find an original or aftermarket spring of the same quality. I made a new thin wall piston to put a stronger spring with biger OD spring, but I couldn't make it light at original. In the Gamo piston I made easier the 15% of the total original mass and got a shot deviation of only 2m/s, less recoil but I lost the maximum shot speed. Before tuning I had 295m/s and now after lightening the piston I have 265m/s. You are right about everything you said. This type of exhibition requires a lot of effort, time and money.
I've just tuned (repaired) my 1980 HW35E after noticing a substantial power drop. I used to shoot on a local farm back in the 80's but haven't done so for many years now so the gun is used purely for plinking pleasure and keeping down the rat population in the garden which seems to go hand in hand with the several bird feeders we have. It turned out the original 40 year old spring had finally given up the ghost and broken, 3 coils in from the breech end. The gun didn't seem any noisier than normal as it always had some mechanical noise. I ordered and fitted a TBT "tuning" kit with Weihrauch export spring which needed cutting down (easy). The gun is now as good as the day I bought it, slightly better in fact as the nylon guides in the kit have quietened it down. It now averages 10.5 ft/lb with good consistency is very nice to shoot and I'm dead chuffed with the result. I guess "tuning" depends on how far you want to go and to spend. I've had the gun from new and would never part with it but, personally I can't see the point on spending £££ on titanium pistons or additional tuning work when it will never be as quiet and smooth as a PCP. My Brother has a Gamo PCP with silencer, as accurate as the HW, quieter and the difference in shooting experience is night and day.
Absolutely brilliantly explained documented video, I watched to see benefits of short stroking as I recently bought a tbt , kit to drop in my hw97 , and that came with the piston seal extension, glad I watched the video , as now I won’t bother fitting and shirt stroking ,, thanks very much , will be putting up a video shortly on my TH-cam channel, it won’t be half as good as yours ,,, appreciated shaneweightman
In my 95 the short stoke extension was a big improvement, did need to glue it on though, before it was a bit loose fitting, not so good. Best to try for yourself to see before writing it off!
Excellent video, looks like tuning has come a long way, from back in the day when we used a cut up beer can as a spring guide, and lashing of metal polish, 😂
Don’t cut the spring to reduce power, instead try a thicker grease or more of the grease used, on the prying and spring guide rod area. Lots of grease in that area should slowdown the spring somewhat to the point that it will become legal to shoot without having made any changes to the rifle.
Looking at a titanium set up on my 80 as it's recoil is not nice went the tbt short stroke route but the messing to get it to fit took forever, went with the aussie short stroke seal way better but still not what I want but really like the reviews on the Paul short kit and it's the way I want to go.
Hi Robert, I know what you mean with the hw80, I did the same trying all the home tuning routes. The problem is because the hw80 has a big 30mm piston it becomes really slow and lazy when you drop the power below 12ftlb. It was really designed for higher power. It is one of the more expensive for custom tuning because you really need to sleeve the cylinder and reduce to a 26mm glided piston. It will then shoot just as nicely as a highly tuned hw95, infact with the extra stock weight will be even nicer. I reccomend talking to Paul, he is the jedi of weihrauch tuning.
@@jamesbailey6946 cheers I will speak with him as I really don't want to get rid of my 80 it's such a well built rifle and I know when it been done it will be fantastic.
Can I ask you WHERE do you get the titanium piston from - can they be bought in the UK & approx cost - (I am watching a 4 year old video I know) but would give a guide- if the parts are obtainable price wise Thank you
Hey, I live in the United States. I was looking at the beeman Kodiak, but also like the look of some of the Benjamin rifles. I don't trust nitro pistons however and would like to tune whatever gun I get. I want to make a pretty much life lasting pellet gun. Where would you go for parts? And how donkey determine how to convert nitropistons to conventional spring?
I have a Beeman R9 bought in 1989 or so. It is actually an Hw95 but it is still running very well in 2023 with the most basic care and maint. I’d say start with an HW if your looking for a lifetime rifle
What forces are applied to the piston sleeve? All of the axial spring forces are applied to the seal end. That leaves the radial forces from the seal end being out of square. Delrin deforms under pressure, so adding the delrin must not be seeing much force. So, with no axial force and little radial force on the piston sleave, why not remove most of the material from the sleeve by cutting slots and reduce the mass? (Am I missing something?)
Can anyone please make a video on different types of springer pistons , reason i ask is every video i watch has that rod in the piston but my beeman does not and all i find time after time is videos on this type of piston , someone needs to do a more in depth video of different styles of pistons and why they are made the way they are . My gun is a BEEMAN RS2 break berrel and ive done some tuning , but try and find a video on my type of piston is imposable . Any help or direction would be nice ,
I have a Hassan stricker.25 does anybody know what kind of upgraded parts I would need to get about 900 to 1,000 feet per second is that even doable with a break barrel Springer the shots I have to take between 75 and 100 yards or would it be better just to get another gun it's a shame because it's pretty accurate just too slow at that distance
if you have an 18ft-lbs break barrel, could you get it down to 11,5 ft-lbs whilst also lightening and gliding the piston/cylinder? I'd imagine if so, it would make it a sweet springer with low recoil no?
Switch to Ox Accelerator mainspring, make sure the size you buy slightly shorter than your default spring. The Ox accelerator is coated with Moly so you don't need lube.
hello I am subscribed to your channel congratulations for the videos, I am writing to you because I need some advice from you who are good at this, I am writing to you from Italy, here unfortunately the maximum power is 7.5 joules, I bought a gamo replay 10 magnium from 5.5, practically the diablo too heavy and it does not go, it sucks, a real shit, can you tell me how can I get it to 45 joules? I hope you can help me because I do not find information anywhere. I hope to hear from you soon
Back in the day ,used to put ox spring into the hw 80 ,I don't know if u can still get them I think there were from USA ,my mate got 28 ft lb from his highly illegal but we were all hung up on power in those days if u could get the barrel to smoke after each shot so much the better 😝
@@gregorteply9034the coppers can carry a chrono, so can check the power! If you are above the 12ftlb then you are breaking the FAC regulations and could serve a jail sentence.
@@winston99999holy cow. I know here in the USA you're allowed to build your own guns, and everything. The only problem is selling your home made gun. We aren't allowed to sell them. Makes sense.
I put 4 washers the on the receiver first and really compress fhe spring in its hard but after doing it to my bsa 177 it increased power to the point the barrel oil used ignite and smoke after every shot before I did this I would shoot ag my old shed door top of garden it would penetrait half way I put washers in now shot at same door it gose through the door and through the back of shed the farmer next door toldme about it it is a struggle to get spring pun back in but is worth it doubled power but is probably illegal 🤣👍
Hi derryjones - do you mean you put the washers on the guide, at the end which goes into the metal tube we see on this video (which he calls the piston and you're calling the receiver)? Or do you mean that you put the washers on the guide at the "back" (opposite end of the piston, so you're calling the guide the receiver?) What size washers were they (ie width, hole diameter and thickness?) Sorry for all the questions, it just sounds like a great idea!
@@johnny2f55just do the spring test mods .. Mesure it first .. then stretch it 8 inch And Mesure it again . I've pulled mine 12 inch And got 2 in longer..😊 Hard to put back together.. But really the best mod By far .
Hi Paul, Thank you for a great explanation on air rifle tuning. I found it really interesting and thank you for explaning short stroke, etc. When I was at school, my mates used to brag about making their air rifles more powerful, thinking more power was better. I was never allowed one back then. I dont think this is always the case as more power can alter the pellet accuracy. Compressing the spring to create more power, I would have thought a bad idea also. Like you said, people must know what they are doing. Its a bit like altering the tyres, springs and brakes on a car, then taking it around the test track, expecting it to outperform the original set up. Very able, clever people produced the initial vehicle. It would think it would be unlikely that with respect, some duffer with a meat pie in one hand and a sausage roll in the other would better it. Thank you, Paul. Best wishes, Ian.
I must admit to having positives with the short stroke extensions on my TX200 and HW98 especially the latter. Both guns have tight top hats and guides with no vibration.
Hi James very well explained review on tuning I've got a paul short hw80 with 26mm piston conversation recoil s minimal accuracy excellent beats my hw97k v guide no problem Paul short tuning properly the best around and a nice guy hope you do some more videos on tuning soon
With a springer , it comes down to proper lubrication in the UK and still keeping the sub 12 FPE you are restricted to . Given no restrictions in the US we can play around getting what we want . After shooting a PCP and getting spoiled ! I find myself lookin at my springers, wanting to reduce the vibration and willing to give up speed to get there . Lol
Excellent information thankyou! ..I have got a Diana 98k in .22 and the Spring makes a terrible twanging banging noise when fired ..It needs tuning up desperately as its only doing about 9.5 ft lbs
Paul does fantastic work. Got a Ti piston in my 97. And since you mentioned 22mm, you must also have Tony's 22mm skirtless too eh? Fantastic kits both.
@@ps-ty4mw Can't remember exactly but it was a package of the titanium piston (glided), the comp tube got jeweled (glided too), and the trigger polished/tuned. So I'm not sure how the price of each broke down. Best to contact Paul Short if you want to know exactly (and the tuners don't really like discussing their prices publicly). But got to be honest with you here. Paul may be overloaded with work. Got some fellow airgunners saying he doesn't even respond anymore. He's on the Weihrauch Springer Group in Facebook.
Would this guy Paul make one of these tytanium set ups for a HW97KT and send it through UPS or FEDEX to the UNITED STATES cause il pay what ever it is. Can you please let me know Sir. Thank you.
you know what , i was thinking that 5 seconds ago and there it was You asking the very same thing what the problem with putting the correct sized guide in the first place ,? could it be anything to do with after sales . it all seems nuts to me .
@@petercope3263 makes absolutely no sense what so ever. I’ve never understood it. They basically make the gun not as good as it should be for no specific reason at all. All for an extra millimetres worth of plastic 🤯
The piston ,when mine was tuned by some old,boy the put plugs in it they drilled out 10 holes they was filled with 12 mm plastic plugs lathed smooth on the out side and smoothed on the inside
Thank you for producing what in my opinion is the best explanation of ‘air rifle tuning’ I have seen.
zabrdast
Excellent video, I have tuned my HW95 myself.I have drilled my piston to lighten it, added a 12mm short stroked kit, polished all internals etc etc. The result is a fantastic hunting tool.
Can you upgrade the spring on these ?
Could you please guide me? Thank you!
JB. This is good info explaining options to reduce spring noise
I have an 8 joule, break barrel air rifle.
The spring has a diameter of OD=16.6 mm and it is very difficult to find an original or aftermarket spring of the same quality. I made a new thin wall piston to put a stronger spring with biger OD spring, but I couldn't make it light at original.
In the Gamo piston I made easier the 15% of the total original mass and got a shot deviation of only 2m/s, less recoil but I lost the maximum shot speed. Before tuning I had 295m/s and now after lightening the piston I have 265m/s.
You are right about everything you said.
This type of exhibition requires a lot of effort, time and money.
I've just tuned (repaired) my 1980 HW35E after noticing a substantial power drop. I used to shoot on a local farm back in the 80's but haven't done so for many years now so the gun is used purely for plinking pleasure and keeping down the rat population in the garden which seems to go hand in hand with the several bird feeders we have. It turned out the original 40 year old spring had finally given up the ghost and broken, 3 coils in from the breech end. The gun didn't seem any noisier than normal as it always had some mechanical noise. I ordered and fitted a TBT "tuning" kit with Weihrauch export spring which needed cutting down (easy). The gun is now as good as the day I bought it, slightly better in fact as the nylon guides in the kit have quietened it down. It now averages 10.5 ft/lb with good consistency is very nice to shoot and I'm dead chuffed with the result. I guess "tuning" depends on how far you want to go and to spend. I've had the gun from new and would never part with it but, personally I can't see the point on spending £££ on titanium pistons or additional tuning work when it will never be as quiet and smooth as a PCP. My Brother has a Gamo PCP with silencer, as accurate as the HW, quieter and the difference in shooting experience is night and day.
Great video and explanation. Paul shorts work is second to none
And always helpfull. Top bloke
Absolutely brilliantly explained documented video, I watched to see benefits of short stroking as I recently bought a tbt , kit to drop in my hw97 , and that came with the piston seal extension, glad I watched the video , as now I won’t bother fitting and shirt stroking ,, thanks very much , will be putting up a video shortly on my TH-cam channel, it won’t be half as good as yours ,,, appreciated shaneweightman
In my 95 the short stoke extension was a big improvement, did need to glue it on though, before it was a bit loose fitting, not so good. Best to try for yourself to see before writing it off!
Fantastic explanation of all things spring tuning.! Thankyou.
No one ever gives an idea of costs of tuning, but great video either way thanks Shane
WWW
Very well explained and now i know all the information ,I,m able to make an informed choice ,much appreciated
Excellent video, looks like tuning has come a long way, from back in the day when we used a cut up beer can as a spring guide, and lashing of metal polish, 😂
Brilliant explainer. Thanks for this - first time it has all be detailed.
Fantastic video and great explanation. Does your friend have a website for his pistons?
Thanks for sharing your knowledge.
Great informative video, thank you!
Well done that's how I do it tight spring gide and no preload
Thank you for the tutorial!
Good information!
Hi James, I would like to purchase the titanium kit with del rims bands. New guides as mine twangs. Thanks again and Merry Christmas
Yea I want to get that all done to my HW97KT but I live in the U.S and nobody does it that I know of.
learned a lot. Thanks
Fantastic content 👌 👏 👍
Thank you that was very helpful.
How does one go about getting a hold of this Paul Short fella!
Exactly the same problem
Don’t cut the spring to reduce power, instead try a thicker grease or more of the grease used, on the prying and spring guide rod area. Lots of grease in that area should slowdown the spring somewhat to the point that it will become legal to shoot without having made any changes to the rifle.
Unless it diesels
@@stevekurzban9352 The section where the spring is, it is not under pressure, so there is no possible way it could diesel.
Will it damage the gun if the spring is 32cm long?
@@whynotmysterious Use the spring (length and coil numbers) recommended by manufacturer or by online seller, and you should be fine.
@cubaniton74 It certainly can, the grease gets "mashed" into wear marks in the compression tube...
Hi James, I’m very interested in the Titanium pistons, where can you purchase them please?
Lighter piston + shorter stroke ='detuning, tuning is the opposite obviously with using the correct guides and spring.
where do you buy the titainiun piston and the spring kit thanks
Great video , I'm wonting spring and piston kit for my hw55 can you help me in any way please . Bernie . in New Zealand Have got one sorted.
Looking at a titanium set up on my 80 as it's recoil is not nice went the tbt short stroke route but the messing to get it to fit took forever, went with the aussie short stroke seal way better but still not what I want but really like the reviews on the Paul short kit and it's the way I want to go.
Hi Robert, I know what you mean with the hw80, I did the same trying all the home tuning routes. The problem is because the hw80 has a big 30mm piston it becomes really slow and lazy when you drop the power below 12ftlb. It was really designed for higher power. It is one of the more expensive for custom tuning because you really need to sleeve the cylinder and reduce to a 26mm glided piston. It will then shoot just as nicely as a highly tuned hw95, infact with the extra stock weight will be even nicer.
I reccomend talking to Paul, he is the jedi of weihrauch tuning.
@@jamesbailey6946 cheers I will speak with him as I really don't want to get rid of my 80 it's such a well built rifle and I know when it been done it will be fantastic.
Can I ask you WHERE do you get the titanium piston from - can they be bought in the UK & approx cost - (I am watching a 4 year old video I know) but would give a guide- if the parts are obtainable price wise
Thank you
A good video
Cheers
Hey, I live in the United States. I was looking at the beeman Kodiak, but also like the look of some of the Benjamin rifles. I don't trust nitro pistons however and would like to tune whatever gun I get. I want to make a pretty much life lasting pellet gun. Where would you go for parts? And how donkey determine how to convert nitropistons to conventional spring?
I have a Beeman R9 bought in 1989 or so. It is actually an Hw95 but it is still running very well in 2023 with the most basic care and maint. I’d say start with an HW if your looking for a lifetime rifle
Annunciate. It's "Paul Short"
What forces are applied to the piston sleeve? All of the axial spring forces are applied to the seal end. That leaves the radial forces from the seal end being out of square. Delrin deforms under pressure, so adding the delrin must not be seeing much force. So, with no axial force and little radial force on the piston sleave, why not remove most of the material from the sleeve by cutting slots and reduce the mass? (Am I missing something?)
Yes you are, a few brain cells 😅
from where you buy this titanium piston? is it going to fit hw98?
Thank you
Any tips on tuning a tx200 to 14fpe?
What is your barrel length?
Hi! More videos with ur rifle please!
Can anyone please make a video on different types of springer pistons , reason i ask is every video i watch has that rod in the piston but my beeman does not and all i find time after time is videos on this type of piston , someone needs to do a more in depth video of different styles of pistons and why they are made the way they are . My gun is a BEEMAN RS2 break berrel and ive done some tuning , but try and find a video on my type of piston is imposable . Any help or direction would be nice ,
👍😉
I have a Hassan stricker.25 does anybody know what kind of upgraded parts I would need to get about 900 to 1,000 feet per second is that even doable with a break barrel Springer the shots I have to take between 75 and 100 yards or would it be better just to get another gun it's a shame because it's pretty accurate just too slow at that distance
if you have an 18ft-lbs break barrel, could you get it down to 11,5 ft-lbs whilst also lightening and gliding the piston/cylinder?
I'd imagine if so, it would make it a sweet springer with low recoil no?
Well I've never heard of a "chewned" air rifle before, us simple folks across the pond just seem to miss it all!😅
👍
James does 12 wilmot mean anything to you.
تفنگ بادی ریتای مدل135ترک
Springer air rifle how to increase power plz
Switch to Ox Accelerator mainspring, make sure the size you buy slightly shorter than your default spring. The Ox accelerator is coated with Moly so you don't need lube.
Second, test different pellets that works best with your new spring.
Third, better yet just get a Gamo Hornet 1000 fps or Norica zero recoil springer.
hello I am subscribed to your channel congratulations for the videos, I am writing to you because I need some advice from you who are good at this, I am writing to you from Italy, here unfortunately the maximum power is 7.5 joules, I bought a gamo replay 10 magnium from 5.5, practically the diablo too heavy and it does not go, it sucks, a real shit, can you tell me how can I get it to 45 joules? I hope you can help me because I do not find information anywhere. I hope to hear from you soon
Where can I get this titanium piston ?
🌍
Lots of blah blah blah blah but no actual demonstration shown 🥵🎯
@@Yes-or-No-Yes seems like you have a different opinion to most..oh well. Be sure to tag your own efforts.
Stop handling those parts nervously.
Bla bla bla bla bla !
Looks more like an HW 77 OR 97 the 95 is a break barrel is it not
Back in the day ,used to put ox spring into the hw 80 ,I don't know if u can still get them I think there were from USA ,my mate got 28 ft lb from his highly illegal but we were all hung up on power in those days if u could get the barrel to smoke after each shot so much the better 😝
Does actually anybody checks the power limit?
@@gregorteply9034the coppers can carry a chrono, so can check the power! If you are above the 12ftlb then you are breaking the FAC regulations and could serve a jail sentence.
@@winston99999holy cow. I know here in the USA you're allowed to build your own guns, and everything. The only problem is selling your home made gun. We aren't allowed to sell them. Makes sense.
Well done that's how I do it tight spring gide and no preload
I put 4 washers the on the receiver first and really compress fhe spring in its hard but after doing it to my bsa 177 it increased power to the point the barrel oil used ignite and smoke after every shot before I did this I would shoot ag my old shed door top of garden it would penetrait half way I put washers in now shot at same door it gose through the door and through the back of shed the farmer next door toldme about it it is a struggle to get spring pun back in but is worth it doubled power but is probably illegal 🤣👍
How to increase power
Hi derryjones - do you mean you put the washers on the guide, at the end which goes into the metal tube we see on this video (which he calls the piston and you're calling the receiver)?
Or do you mean that you put the washers on the guide at the "back" (opposite end of the piston, so you're calling the guide the receiver?)
What size washers were they (ie width, hole diameter and thickness?) Sorry for all the questions, it just sounds like a great idea!
@@johnny2f55just do the spring test mods ..
Mesure it first
.. then stretch it 8 inch
And Mesure it again .
I've pulled mine 12 inch
And got 2 in longer..😊
Hard to put back together..
But really the best mod
By far .
Hi Paul, Thank you for a great explanation on air rifle tuning. I found it really interesting and thank you for explaning short stroke, etc.
When I was at school, my mates used to brag about making their air rifles more powerful, thinking more power was better. I was never allowed one back then.
I dont think this is always the case as more power can alter the pellet accuracy. Compressing the spring to create more power, I would have thought a bad idea also.
Like you said, people must know what they are doing. Its a bit like altering the tyres, springs and brakes on a car, then taking it around the test track, expecting it to outperform the original set up. Very able, clever people produced the initial vehicle. It would think it would be unlikely that with respect, some duffer with a meat pie in one hand and a sausage roll in the other would better it.
Thank you, Paul.
Best wishes, Ian.
I must admit to having positives with the short stroke extensions on my TX200 and HW98 especially the latter. Both guns have tight top hats and guides with no vibration.
Asome thank you for the insight. It will allow me to make a good decision for my gun. Have a great day.
Hi James very well explained review on tuning I've got a paul short hw80 with 26mm piston conversation recoil s minimal accuracy excellent beats my hw97k v guide no problem Paul short tuning properly the best around and a nice guy hope you do some more videos on tuning soon
With a springer , it comes down to proper lubrication in the UK and still keeping the sub 12 FPE you are restricted to .
Given no restrictions in the US we can play around getting what we want .
After shooting a PCP and getting spoiled ! I find myself lookin at my springers, wanting to reduce the vibration and willing to give up speed to get there . Lol
How much would a titanium piston cost for a HW98? Does Paul have a site?
Excellent information thankyou! ..I have got a Diana 98k in .22 and the Spring makes a terrible twanging banging noise when fired ..It needs tuning up desperately as its only doing about 9.5 ft lbs
Has anyone experimented with braided wire springs?
Paul does fantastic work. Got a Ti piston in my 97. And since you mentioned 22mm, you must also have Tony's 22mm skirtless too eh? Fantastic kits both.
How much is a titanium piston for a 77/97?
@@ps-ty4mw Can't remember exactly but it was a package of the titanium piston (glided), the comp tube got jeweled (glided too), and the trigger polished/tuned. So I'm not sure how the price of each broke down. Best to contact Paul Short if you want to know exactly (and the tuners don't really like discussing their prices publicly). But got to be honest with you here. Paul may be overloaded with work. Got some fellow airgunners saying he doesn't even respond anymore. He's on the Weihrauch Springer Group in Facebook.
@@UseVisine I messaged him a year ago and still waiting for a reply, cheers anyway.
Is there any way to shorten the spring to increase the pressure of the gun?
Washers.
@@hirokawiti4932 what are they?
Would this guy Paul make one of these tytanium set ups for a HW97KT and send it through UPS or FEDEX to the UNITED STATES cause il pay what ever it is. Can you please let me know Sir. Thank you.
Well explained, thanks
Why don’t they just make the guide a closer fit to the spring in the first place?
you know what , i was thinking that 5 seconds ago and there it was You asking the very same thing what the problem with putting the correct sized guide in the first place ,? could it be anything to do with after sales . it all seems nuts to me .
@@petercope3263 makes absolutely no sense what so ever. I’ve never understood it. They basically make the gun not as good as it should be for no specific reason at all. All for an extra millimetres worth of plastic 🤯
ok thanks its nuts enit .
Its only done to take out the twang noise, not for a power upgrade @GhostofCTC
The piston ,when mine was tuned by some old,boy the put plugs in it they drilled out 10 holes they was filled with 12 mm plastic plugs lathed smooth on the out side and smoothed on the inside
How are detuned to be for 495 fps in Canada
I've got a Paul short titanium piston on my hw97 and its well worth it I only shoot hft. Hoping to get one for my tx200 soon too.
Is Paul available in the US ?
Fantastic video, thanks for the explanation 👍
Just cut the spring preload and a tight spring guide as good as a pcp