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Hypervelocity 22s

1 by Buck13
Since I perhaps should have put my CZ thread here instead of in Rifles, I'll throw out this tangent. A couple of possibly interesting posts about hot .22LR:

https://www.ammoland.com/2020/04/veloci ... z89L1xhYvN

https://www.rimfirecentral.com/threads/ ... st-4083034

Don't put this stuff in your High Standard pistols! I've fed a small amount to my Ruger MkIIs with no signs of trouble, yet.
IMR4227: Zero to 900 in 0.001 seconds

I'm only killing paper and my self-esteem.

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Re: Hypervelocity 22s

2 by CDFingers
Whether rifle or pistol, semi automatics don't respond well to ammo outside its specs. I get lots of stove pipes and so on with my MKII if I don't use ammo within its specs. Revolvers and bolt and lever guns though will work fine and let the shooter get the most out of that high velocity. That's why we all have to have semi's as well as revolvers and bolts and levers.

CDFingers
Crazy cat peekin' through a lace bandana
like a one-eyed Cheshire, like a diamond-eye Jack

Re: Hypervelocity 22s

4 by highdesert
CDF is right, check the manufacturers standards for ammo so you don't cause yourself needless problems. Subsonic ammo is another one that doesn't consistently cycle well in semi autos, but it works in a bolt action rifle and revolver.
"Everyone is entitled to their own opinion, but not their own facts." - Daniel Patrick Moynihan

Re: Hypervelocity 22s

5 by Buck13
wooglin wrote: Thu Aug 03, 2023 1:43 pm I don't know the technical difference between standard ammo and +p, but this sounds like an instance it should be considered. Until now, 22 lr was 22 lr. But apparently it is not.
I don't think these are +P. The SAAMI pressure for .22LR is 24,000 PSI, and no one ever says these exceed it. (Of course, it's possible standards don't even reach SAAMI max. I don't know.) Presumably the difference between standards and MiniMags and these Hypers is that the faster loads pack in more but slower burning powder so the peak pressure is the same but the pressure curve is wider for the slow powder and the bullet feels the peak or near-peak pressure for longer. That also means the bolt feels the case head pressing it for longer, which would give more slide velocity in semi-auto.

If the slide (and/or spring) was too light and quick to recoil, you might get bulging or splitting brass! I've never seen that, but I have seen "sparks" come out my ejection port. Can't remember if that was with High Velocity .22s or only the Hypers. I don't think I've seen it with standards.
IMR4227: Zero to 900 in 0.001 seconds

I'm only killing paper and my self-esteem.

Image
Image

Re: Hypervelocity 22s

6 by SunRiseWest
Very interesting. I have several hundred rounds of Interceptors, and was not aware they were considered particularly 'hot' loads. (I also note that the posts in the link are about 10 years old.) The Taurus 942 was no happier with the Interceptors than with anything else, though I haven't been to the range in a couple of months.

I will now likely avoid the Interceptors in my Mark II, because it's having feeding problems anyway-- I suspect the magazine (one is better than the other, but even the one that feeds is pretty unreliable).

What I'm most interested in is Federal Punch, which narrows the gap between .22 LR and most 'normal' .22 WMR from a two-inch barrel, but also because the manufacturing may be better, and I'm hoping to get fewer light strikes from the Taurus. If I ever find any, I'll probably use it for the Taurus and the Rough Rider, and only rarely in the Ruger. I had no failures to fire from the Interceptors in the Mark II, but I didn't shoot a lot of 'em.

Re: Hypervelocity 22s

7 by wings
Hypervelocity loads with lead bullets work fine in my Mark IV, and shoot tighter groups than anything else. Punch uses a 29 grain bullet - same as .22 Short - in the same extended case as the CCI Stinger, so there are all sorts of things that could potentially go wrong in a semiauto while still running within SAAMI specs.

They work great for me though. I tried copper frangibles once but they were too light to cycle reliably. YMMV.

Re: Hypervelocity 22s

8 by CDFingers
As long as the energy of the shot matches the recoil spring, they will cycle fine. Otherwise we find troubles. I suppose having a few different springs on hand would allow the use of any ammo.

CDFingers
Crazy cat peekin' through a lace bandana
like a one-eyed Cheshire, like a diamond-eye Jack

Re: Hypervelocity 22s

9 by highdesert
SunRiseWest wrote: Sun Aug 06, 2023 5:29 pm Very interesting. I have several hundred rounds of Interceptors, and was not aware they were considered particularly 'hot' loads. (I also note that the posts in the link are about 10 years old.) The Taurus 942 was no happier with the Interceptors than with anything else, though I haven't been to the range in a couple of months.

I will now likely avoid the Interceptors in my Mark II, because it's having feeding problems anyway-- I suspect the magazine (one is better than the other, but even the one that feeds is pretty unreliable).

What I'm most interested in is Federal Punch, which narrows the gap between .22 LR and most 'normal' .22 WMR from a two-inch barrel, but also because the manufacturing may be better, and I'm hoping to get fewer light strikes from the Taurus. If I ever find any, I'll probably use it for the Taurus and the Rough Rider, and only rarely in the Ruger. I had no failures to fire from the Interceptors in the Mark II, but I didn't shoot a lot of 'em.

Might be time to buy a Ruger Mark IV during the short window when we in CA can purchase non-microstamped handguns.
https://oag.ca.gov/firearms/handgun/mark-iv-40183

https://www.turners.com/ruger/ruger-mk- ... ck-1876017
I'm not pushing Turners, just showing they're for sale in CA.
"Everyone is entitled to their own opinion, but not their own facts." - Daniel Patrick Moynihan
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