Thanks.
How about an MP5/40 rebarreled to .357?
Too much for the action / receiver?
I think the big red easy button us a b&t chassis with the stock converted to a brace. I have one with a glock 17 and one with a 20. Both are excellent, accurate, reliable. The 10mm is so good I don’t lug my apc10 around often.
You should do a review of it and create a new thread. I am very interested as I am sure others would be
Same.
I SBR’ed a .357 SIG blowback AR using a Quarter Circle 10 barrel that takes Glock mags. One of my favorites.
How many rounds have you put through it?
Some people are saying a blowback 357 SIG AR will tear it’s self apart.
Lastly did they custom make the barrel for you, it isn’t listed on their web page?
Can you buy an 8" or 10" barrel to drop in? That would be primo.
I probably have 200rds down range and it runs flawlessly so far. No sign of damage to the rifle or internsls thus far. I was able to dig up an email regarding the purchase- attached. A subsequent Sept 2017 email inquiring if they (QC10) were going to produce additional 357 SIG AR barrels received this reply:
“Probably not in blowback configuration. It’s just too easy to make it unsafe. We’re going to be looking at some other options, so stay tuned.”
Daniel Barreras
Been for sale for years…
https://moriartiarmaments.com/ar-.357-sig/ar-.357-sig-moriarti-arms-16-slick-side-carbine-rifle-semi-auto-lrbho-ma-357sig-16
I think I contacted them about doing an 8" upper or whole gun and they passed. 357 sig is not list as part of their AR pistol line up
I think I contacted them about doing an 8" upper or whole gun and they passed. 357 sig is not list as part of their AR pistol line up
Is there any reason the short bottleneck rounds would feed less reliably than a short straight round? I guess I am asking if there would be any concerns with that profile. The Russians and Chinese certainly had no issue building millions of 7.62mm Tok SMGs.
Honestly, a 357 Sig PCC makes sense - a bit more powder capacity than 9mm should mean a velocity bump from barrel length and velocity starts higher, of course. I “think” muzzle movement in a delayed blowback or locked breech 357 would be less than a blowback 9mm - recoil in either is not significant.
But 357 Sig PCCs are not common.
Andy
Hi Yoni,
Since you carry large handguns, have you considered a Glock 40 (10mm) to get the power you are looking for?
Btw, I think someone out there makes a 10mm PCC.
Didn’t even know there a 40. I have shot the 20, and as much as I’m not a Glock guy, probably the 10mm I’d get, but the 40 is high cap and a long barrel, so that seems like a real win as camp/woods kinda gun. I suspect the ergos would be terrible for those with anything but big hands, but I’d like to try one.
Yoni is not looking for power per se, but projectiles from a pistol or PCC doing rifle caliber velocities (above 2k) that will produce rifle velocity wounding mechanisms pistol calibers generally don’t. Hence the interest in lehighd efense bullets in .357 Sig.
Didn’t even know there a 40. I have shot the 20, and as much as I’m not a Glock guy, probably the 10mm I’d get, but the 40 is high cap and a long barrel, so that seems like a real win as camp/woods kinda gun. I suspect the ergos would be terrible for those with anything but big hands, but I’d like to try one.
Yoni is not looking for power per se, but projectiles from a pistol or PCC doing rifle caliber velocities (above 2k) that will produce rifle velocity wounding mechanisms pistol calibers generally don’t. Hence the interest in lehighd efense bullets in .357 Sig.
Didn’t even know there a 40. I have shot the 20, and as much as I’m not a Glock guy, probably the 10mm I’d get, but the 40 is high cap and a long barrel, so that seems like a real win as camp/woods kinda gun. I suspect the ergos would be terrible for those with anything but big hands, but I’d like to try one.
Yoni is not looking for power per se, but projectiles from a pistol or PCC doing rifle caliber velocities (above 2k) that will produce rifle velocity wounding mechanisms pistol calibers generally don’t. Hence the interest in lehighd efense bullets in .357 Sig.
Yeah, I know he is looking for rifle velocities for increased wounding potential. But wouldn’t a 10mm, with perhaps less velocity, produce better results?
I carry a 9mm handgun every day and I see the 10mm as a woods caliber. But perhaps it works for his purposes.
Than a 65g projectile doing legit rifles velocities? “On paper” the answer should be no, or they’d carry 10mm vs SBRs you’d think, or even 10mm PCCs. At higher velocities, rifle wounding mechanisms are far greater, which why say a little 55g 5.56 doing 3k FPS puts goblins down like no pistol in typical duty loads can. Even the mythical 10mm can’t do anything more than drill holes into people vs yaw, fragment, cause a larger perm cavity due to hydrostatic mechanisms. Hence his interest in a PCC firing a pistol load that may be the best of all worlds there.
Than a 65g projectile doing legit rifles velocities? “On paper” the answer should be no, or they’d carry 10mm vs SBRs you’d think, or even 10mm PCCs. At higher velocities, rifle wounding mechanisms are far greater, which why say a little 55g 5.56 doing 3k FPS puts goblins down like no pistol in typical duty loads can. Even the mythical 10mm can’t do anything more than drill holes into people vs yaw, fragment, cause a larger perm cavity due to hydrostatic mechanisms. Hence his interest in a PCC firing a pistol load that may be the best of all worlds there.