.357 Sig VS .357 Magnum - Corbon 125 gr JHP
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- เผยแพร่เมื่อ 21 ก.ย. 2024
- Testing the Corbon JHP in .357 Sig and .357 Mag both with 125 gr JHP bullets. The .357 Sig is rated at 1,425 FPS and the .357 Magnum is rated at 1,400 FPS. I do chronograph tests and a 10% Clear Ballistics test. Always appreciative of any channel help :) www.patreon.co...
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I want to address something that has been bothering me lately, and that is the repeat comment in some form or another, about .357 Sig ammo price and availability. Paraphrasing 100 comments into one here - ".357 Sig is not available anywhere, and it's two to three times the cost of 9mm so it's useless". My question to these people is - what are you even talking about?!
I know that a lot of physical stores do rack up the price because all they offer is generally Federal American Eagle .357 Sig, which is very pricey ammo. But to say that the cartridge is hard to find and to say it's like $60 a box in general, is very factually wrong. Going on ammoseek, there are 5+ pages of .357 Sig for purchase just like any other popular cartridge, and about a dozen of these retailers offer 50 round boxes of .357 Sig for $22 to $25. Also, defensive ammo is often about the same price if not less than 9mm+P defensive ammo.
The fact is, .357 Sig is not all that hard to find and not all that expensive. It's not a lot different (at least online) than buying a 50 round box of .357 Magnum for cost and availability, but for whatever reason a lot of people are either seriously misinformed or have an agenda to make it seem as .357 Sig ammo is about as rare and expensive as .455 Webley (5 retailers online averaging about $65-$70).
I did shake the .357 Magnum cartridges before this video, and I could hear the powder sloshing back and forth. As a handloader, that is a tell tale sign that the powder in them was not magnum powder. Magnum powders are usually bulky so they slow burn, but that powder moving around sound is indication they used a powder that is typically used for rounds like 9mm, and just loaded to a certain charge of that to save money. Velocities were nearly the same as I would get when doing the same thing with cheap Titegroup powder with XTP bullets, throwing like 7 grains in there and getting about the same velocity. True magnum powders still cost the same per ounce, so using on average like 15 gr per cartridge of true magnum powder like a true magnum round should have, is something Corbon skimped on here.
Exactly my thoughts. 357mag performance was OK. Except velocity spread was too great for premium ammo. They should market it as a moderate recoil defense load with a high performance bullet [and tighten up the SD]. Its dishonest [and unnecessary] to market that as full power 357 magnum.
Yeah, sad to see that in Corbon, I used to get those cause they said 1400 fps on the box, and they were certainly LOUD, I think I have some hearing damage from my 2 1/2 Compensated from that, but I guess it's Best to go for Buffalo bore? Do some of that. about ready to invest in glock .357 or trade my dad for his.
I will never buy corbon for my revolver.or anything else ...every review I see shows the same basic results.....I hate the corporate kokk sukkers......if your putting .357 mag in your hiking,woods survival gun they better be full power....cor bon has dropped the ball on purpose to try and get the almighty dollar from the more media pushed semi auto market and they do not care about quality control or the fact that someone might be relying on this ammo for protection from dangerous animals when out in the woods...just market lies and collect the money...in the begining of their company they actually produced what they advertised and cared.....then they went into remington arms mode....fk them ...if your depending on this in your only backwoodscarry last resort protection gun then you are fukkd
I commented on another video about how hot tulammo 38s was.
I think they would give those corbons a run for their money.
Really awful extreme spread too. Almost like they used a faster burning powder as you said, but then incorrectly used a magnum primer.
Wonder if the .357 Sig was actually over loaded with that primer backing out.
For those who say speedloaders are too slow and impossible to use under stress, remember that they were the standard for law enforcement officers across the US and in other countries for many decades. They work, and shooters who practice can use them even under adverse conditions.
Love me the 357sig. I have shot 204 different offerings through my P229 ( new or factory reloads). Still going strong at 11,000+ rounds!!
NEVER WANTED ONE NOR SHOT ONE - ALWAYS BEEN A 357 REVOLVER GUY - BUT I GOTTA SAY JUST FROM THIS VIDEO THERE CERTAINLY AINT NO FLIES ON THE SIG -- EVEN AN ANGRY 300lb BAD GUY WOULD HAVE SOME PROBLEMS WITH IT METHINKS -- HOW IS IT TO RELOAD ?
Any jams
Love the 357sig content!
I would have expected much higher velocities from a Corbon 357 Magnum load. I once bought some 357 ammo from a company that clocked just over 900 fps. It was so pathetic that I contacted them to complain. All I received was an apology, so I stopped purchasing their ammo.
Very weak, mine as well use a 38spl
No way 900 fps ? Dammmm
@@SwayOsoarrogant925 I checked my notes from seven years ago. It was Freedom Munitions 357 MAG, 158 grain Flat Point (remanufactured), Product Code: FM357F158R-B0250. I ran chronograph tests using a S&W 586 revolver with a 6" barrel. Velocities averaged 945.6 FPS, with the highest being 982 FPS and the lowest being 915 FPS. I had expected even remanufactured 357 to clock at least 1200 FPS. Their own chart showed the 158 grain FP at 1375 FPS.
The fact it wasn't even the same manufacturer would make it a good idea to edit your post??!
@@barrymccockiner6641 I never said it was Corbon, but I have edited my post so nobody mistakenly thinks it was.
You might expect .357 Magnum to be pushing 158 grain projectiles at those speeds but 125 should be a good bit faster.
Your videos are great!!! Would it be possible to use the chronograph on the shots taken into the gel also? I enjoy all the comparisons you make like recoil and accuracy. Good stuff!!!!
Thanks. I have done it from time to time, but I also have a habit of having gel blocks jump, that's why I was never really into the chronographing each shot. Plus I tend to have the issue where, I don't always get a read. Takes like 3-4 minutes to setup the chronograph to get reads as the angles have to be perfect, doing it for each gel shot would get difficult.
Great video. Thanks
I really love. 357 sig. I think underwood loads .357 sig so well. Great velocity and foot pounds. My EDC is a glock g31 with 124 gr. Underwood hollow point using a nosler projectile. It has a little over 600 foot pounds of energy. I really wish people would see just how good this round is. Anyway, thanks for the test.
Agree....a bit disappointed with low velocity on 357 mag. Pleased with Sig. Both had really good performance. Thanks.
I love your vids man. Same test every time gives us more accurate comparisons. Thanks
Thank you
Love your videos man💯💯💯
Keep em coming
My 10 year old stash of Remington ‘Green and White Box’ 125grain 357s keeps looking better and better.
Underwood is the best 357 sig ammo. I also like the 44 mag ammo they have.
I’ve been using those knob speed loads sense 80 and they work. The 357mag advertised speed out of an 8” barrel. The primer deal 🤷♂️ not good but I’ve had bad rounds from most ammunition companies over the years, all you can do is 🙏 it works when if needed.
I have a bunch of SKS speedloaders and I still use them. You're right; they work. One of them was issued to me in 1977. It's partner cracked after being dropped on the concrete one too many times.
In my experience, the .357 mag loads today are compromised to have better handling in the smaller and lighter .357 mag revolvers coming out today. I have loads that are at least 10 years old and they feel way hotter that a majority of the offerings you get today.
Which 357 sig conversion are you using? Great video, I’m surprised at how slow the newer 357 mag rounds are these days. 125s used to be flame throwers.
Sam is using a KKM barrel
That's why I carry a 357Sig!
Thanks 😊
I figured the Magnum would be a little more powerful as I know that usually the 357 Magum is properly loaded and will beat the 357 Sig, but since this revolver ammo has been loaded down, and this 357 Sig semi-auto ammo loaded up, this today isn't the case. The semi-auto 10 mm is usually loaded down & wish the manufactures would treat the ammo as good as the 357 Sig. Wish I could find 10 mm loaded as it was intended to be unless you buy the real expensive rounds like Underwood & Buffalo Bore, as well as a couple of others too, but still expensive. Thinking about reloading (especially 10 mm) as you could load anything you wanted, as does "The Turkey's Opinion". Otherwise you're shooting about what 40 S&W gives you, & sometimes even less.
10mm is one that can be loaded really well. With revolver rounds, hand loading gets complicated with getting crimps perfect enough to build pressure, but 10mm loaded with basic Aliant Power Pistol will really get you up there. I haven't loaded 10mm specifically, but did load .45 ACP+P with that powder, starting charge 230 gr bullet gave me over 900 FPS, top charge was like 1,100 FPS so it's worth it to hand load semi auto calibers like 10mm. With .357 Mag, I have tried everything from Magnum 296 powder, to Ramshot Enforcer and others and I get like 125 gr at 1,400 FPS with max charges. You really have to be a crimp master to make .357 Mag work really well. Just my experience, I am sure other's have different experiences.
Back in the early 1980’s I used what was a medium load of 2400 with a 125 grain bullet. Great accuracy out of my Security Six! Now it shows as over max in manuals. And I would back off it a bit if loading today. They tell me 2400 is a bit faster burning than it used to be.
Good video. Another good comparison. Thanks for sharing. Take care.
Good stuff!
Blown primers were a problem with Corbon and SuperVel years ago, Corbon especially.
I’ve said before that the .357 SIG does a great job of reproducing the legendary ballistics of the 125 grain .357 Magnum in an auto pistol. But you’ll never see a .357 SIG load to equal Buffalo Bore’s monster stomper 180 grain .357 hunting load. The .357 SIG is a one trick pony. Too bad Cor-bon has backed away from their reputation for hot ammo. Call this one a +P+ or Treasury Load, nearly a Magnum. BTW back in the 1970’s I reproduced the original 1935 claimed ballistics for .357 with a hard cast bullet in my 8-3/8” Model 27. I used a load of Herco listed in the Lyman 45th. But I cratered primers and pierced one. 😮
I've never understood the issues with Corbon, but it's a concern I've had with them my entire adult life.
Some of the hottest and weakest handgun ammo I've ever shot was from Corbon. I took some of their 200 grain hardcast loads in 357 Magnum for a test drive about 15 years ago and out of a 4" GP100 they were monstrous! Very powerful, lots of recoil, and unacceptably sticky extraction.
A few months ago I purchased some of their 9mm+P 125 grain JHPs and the rounds in the box I got were so weak they barely cycled in my Beretta 92.
Most of the ammo I've bought in between has been plagued with one issue or another. I was really hoping after so long, they had improved their quality control but....sadly they seem as hit-and-miss as ever.
I'm rather disappointed in that 357 load. The Sig stuff was good. I won't be wasting any money on that Corbon 357 mag load.
ETA: I should have waited until the end to comment. That primer falling out is no bueno. It's something I might expect from brass that has been fired too much or is overly hot. I've had flattened and cratered primers before. But never have I had one fall out!
As for the Corbon in 357 mag, you do have a point about it being a lower recoil load. I don't know how it would do in a snub either, because that's where you would want something that doesn't cause pain and bleeding! That's why choosing 357 Magnum for a 340PD or M&P340 is so challenging. The recoil is just wicked and so is the blast.
Excellent review, I'll stay with my GP 100.
I have a Hypothesis that manufacturers use 7” Revolver Barrel length test fixtures because Single Action Cowboy Guns were that long. So “modern” DA revolvers just come up short. Some manufacturers do make “ Short Barrel “ loads for snub nose revolvers. So there can be exceptions T my hypothesis.
Great comparison.
But when compairing revolver to semi you shouldnt forget the revolved is a vented barrel. Also I dont think of the cyl legnth as a baller
Length advantage. Its larger then a barrel so not building pressure at equal rates as a non vented bbl.
That has been proven not to matter much
I don't know what you mean, I shouldn't forget. All revolvers have cylinder gaps and I think that is what you are referring to. Average of 5% velocity loss but I have seen it as low as 1% loss. Even at 5% loss that's 60 FPS. Either way, a 4" revolver is a full size handgun and a 4" semi auto is a compact handgun that is significantly smaller. I am going as fair as I possibly can with what I am doing, as at the end of the day the same size profile handgun VS another of the same size, is what one would be carrying VS the other. If I was in 4" semi auto range, i'd be carry a 3" revolver.
Dear Corbon,
Shame on you.
~TH-cam
Perfect lol
Thank you for another great video! I am thinking about designing an experiment with semi-auto handguns. Suppose you have three copies of a Glock g19. If you fired the same ammo out of each of the three pistols, would you suspect that one copy of the gun would shoot faster than the other copies (ft per second of projectile as measured by chronograph)? I can't think of a good reason why one Glock g19 would fire faster than another Glock, but I thought I would ask for your advice, because you have more experience shooting handguns and conducting experiments with them.
My Smith 19-5 snuby does ok at15 yards. It's brutal at 10 yards. I carry 158 flat nose.
If I had the extra cash I'd buy you a few older Smith revolvers. You'd like those triggers.
Those triggers are sweet for sure. Love vintage Smiths.
Hi Sam, wondering what ammo you use in your 442 or 642?
That’s why I trust my life with 357 sig, the Corbon DPX is their premium offering please try that round one day?
Test is pretty cool, but I wouldn’t want to get shot with either one of them
Must be a powder shortage over there at CorBon. 😆
Excellent content! How do you always have fresh clear ballistic gel? Could you give me an idea what I need to get to re melt it and the process? Or are you buying new ones all the time?
As a man with 4 different 357 revolvers. Any under 140 gr might as well be a 38 sp. I only use 158 in my magnum's. Found out that I can't one hand over 150 . Hell lil baby 120s i can one hand all day.
I will say I just chronigraphed Underwood 125gr .357 out of a 3 inch barrel and I was shocked to get a 1561 reading. Very stout stuff.
Good but not good. So what is your favorite 357 load right now for self defense Sam? Thanks
I'm not Sam but I just tested some 125 gr underwood and was very impressed. Out of a 3 inch barrel Ruger they hit over 1500 fps. If you don't mind recoil, I was very impressed.
Just shows how watered down 357 mag loads have become. All these manufacturers are lawsuit terrified.
.357 Sig rounds definitely were 🔥 hotter ✅
I’ll take .40 S&W federal HST in a 4” barrel please, .40 S&W for the win 😜! But I do love me some .357 Sig in a pocket pistol form like a Glock 33.
starts with a 3
Corbon used to be recommended because it was supposed to be a hot load. What testing I've seen has been hit or miss: Under penetration or lower that advertised velocities. Not bad performance in these calibers, although I would probably skip this brand and buy something better.
What is the name of that speed loader? I gotta git one of those. Thank you.
It's made by SafariLand. Just check your revolver model to their speed loader
@@elijahparker7655 Thank you
Good .357 mag 3” Ruger load?
Like a 38 +P+?
I would rather shoot that than a 180 gr at full power
158 GR SJHP max load 8 inch barrel when?
Does anyone load “real” .357 mag rounds? (Outside Buffalo Bore)
Underwood is about as good as Remington and Federal used to be, like 125 gr 1,450 FPS.
Underwood offers a few - but they are pricey.
@@oldguy3378 I have found in my testing that Underwood loads hot for semi-auto and anemic for wheels.
Yes, but you have to constantly shop around because companies sometimes change their loads and don't tell the buying public.
@@Paladin1873 so, hand-load for the win?!
Cor bons could be great rounds for my mom's .38➕ P heater
We need you to test that 357 Mag load in 2, 3, 4, 6 and 16 inch barrels to see the difference in performance.
Asking a bit much lol
Just three more .357 Mag firearms and some ammo, should be doable with like $2,500. I mean, no big deal. "Kids, you're alright without eating for a couple months? okay thanks!"
@@GunSam 🤣
And yet another 357 SIG bullet in factory ammo that is unsuited to the SIGs velocities.
Meaning?
sounds like the 357Sig is hitting with a bit more authority ...
I bet they used an 8in barrel to test the .357 Magnum, and while there might be a 6in Glock in the .357 Sig, 5 and below is the norm.
I doubt it. An 8" barrel with a load of this nature would be even slower in an 8" barrel. More barrel automatically equaling more velocity only applies when a load has enough power to keep increasing. Something like this load would top off at probably 5" of barrel and then start slowing down due to friction.
Looks like the magnum comes across as a hot 38s
They may use a 6 inch or more test barrel ., I know Hornady used or uses 8 in barrel
If they used a 6", the velocity would probably be even slower. I have noticed this with lower powered rounds. Only when you really get hot ammo with extra powder does .357 Mag really gain anything over a 4" with a 6" barrel.
Mine averaged 1319 in a 4" security six
Very sad...CorBon was always my go to ammo... If a 125 .357 doesn't make 1400 from a 4" revolver it isn't worth buying...
👍🙂
Where do you even get 357s that low on grain?? My 16 year old son would love to no. 🤣😁
That's just a damn shame with respect to 125gr. 357 mag. Damn shame....
Very slow for 125s in a 357. With 21 or so grains of h110 I've pushed 125 xtps close to 1600 with a 6 inch revolver, and they're cooking at a silly 2175 fps from an 18.5 inch rifle
4 inch is 4 inch i would think.
4" semi auto would give roughly 2.8" of travel in the barrel. A 4" revolver gives roughly 4.3". So that's like taking two semi autos, one 3" and one 4.5" barrels, and saying "same!"
Note to self: Dont buy Corbon .357 Magnum. That velocity was just sad, even if the performance was "okay".
Buffalo Bore is where it's at for velocity hogs. Getting some chrono numbers above 1,700 FPS, above 800 ft lbs in a 4" barrel is awesome.
@@GunSamI have to try those.
Handloads
40 is the correct answer vs human sized questions
Just load your own .
I ruined the 420 like count...sorry fellas
Unbelievable....they should be ashamed of themselves for making such a wimpy 357 MAG round
🤘🥸🤘
I saw you shoot better than that! Corbon not good😂
That 357 magnum is weak. It’s a 38 special plus p.
In terms of ft lbs energy, a 4" revolver with .38 Special+P with most ammo is 250-300 ft lbs energy. I'm not sure what you think .38 Special+P is, but it's not this. Only way you get numbers like 445 ft lbs energy is Buffalo Bore or Underwood, and even then it's usually not that high with JHP bullets.
@@GunSam thanks for the correction. I would not carry 357 this weak, on a snub nose my minimum is 400 pounds and 550 on my 4 inch. If i want to carry weak ammo, I carry 9mm standard pressure.
I have seen a lot better ballistic performance with .38 Special+P than 9mm. If you look at the noses of HP ammo, .38 Special always has a larger hollow cavity. I have taken .38 Special+P at maybe 250 ft lbs energy, compared it to 9mm+P at 375 ft lbs energy, and have drastically more damage in my gel than the 9mm. Energy is important, but once you get to a certain amount, a little more doesn't necessarily give you anything more if the bullet design can't work with that energy.
@@GunSamThe outdoor loads from underwood and Buffalo Bore made my jaw drop.