Match Ruger MkII springs to ammo?

[Buck13]

I have three MkIIs. All are used, so I don't know the round counts, but I've put a few thousand through the one I've had the longest. AFAIK, all have the original recoil springs.

I've generally shot a mix of HV and SV ammo. I used to be partial to AutoMatch. A few years ago I bought several bricks of Aguila SV and HV when they were still Eley primed, and Aguila Rifle Match (when nothing cheaper was in stock); have a couple of those left each. New version Aguila looks worse in targets I've seen people post online, so I guess I'll be using CCI SV from now on when keeping score. I have a few boxes and was able to get another brick of it a couple of weeks ago.

I also succumbed to the silliness of getting a couple of bricks of Aguila Interceptor a little while back (a knock-off of CCI Velocitor, as far as I can tell). Trying to get more "power" out of a .22LR doesn't make much sense, but I'm a sucker for gimmicks, I guess!

So, my question is whether it's going to beat up a MkII to shoot that much of this HV stuff. Looking at parts, I see that Volquartsen sells standard and HV recoil springs. Should I dedicate one of them to the supersonic ammo and put an HV spring it it (and maybe replace the standard springs in the others with new ones, while I'm buying parts), or is the difference not really important? I've always thought that MkIIs were fairly insensitve to ammo, unlike, say, High Standards, but perhaps I was misinformed, and of course that probably meant "regular" HVs, not Velocitors

 

[Slamfire]

So, my question is whether it's going to beat up a MkII to shoot that much of this HV stuff. Looking at parts, I see that Volquartsen sells standard and HV recoil springs. Should I dedicate one of them to the supersonic ammo and put an HV spring it it (and maybe replace the standard springs in the others with new ones, while I'm buying parts), or is the difference not really important? I've always thought that MkIIs were fairly insensitve to ammo, unlike, say, High Standards, but perhaps I was misinformed, and of course that probably meant "regular" HVs, not Velocitors

I have almost out of a case of 5000 rounds of SK High Velocity Hollow Point, which has been fired in two Mk II's. These pistols run like a champ with factory recoil springs.

The bolt rebounds against the bolt stop pin, and my pins are still tight in both pistols. That is the only part I can imagine being damaged, that and the holes in the frame and receiver that it goes through.

I am using HV because this ammunition has reliable ignition in my MKII's. Reliable ignition is a constant problem with rim fire ammunition.

This bottle is the repository of alibi rounds during 2700 Bullseye Pistol matches. The shooter raises his hand, shows his malfunction to the Range Safety Officer. If the alibi is due to a defective round, the Range Safety Officer takes that round and hands it to the Match Director who places it in this bottle.

As can be seen, rim fires are the most frequent defective rounds.



You can see by the mashing on several rims, there absolutely was a priming compound problem.




I have had many misfires with 22 lr.

 

[Buck13]

Wow, some of those have a lot of dents! Most of my .22 misfires have gone bang when loaded again at a different angle, although I've had to drop a couple into the dud bin after the second try failed, too. But I don't go through anywhere near the volume of ammo a real competitor would burn, so it's not surprising I haven't found many that were COMPLETELY unprimed.

Your range has a more relaxed attitude about hangfires. The dud box at the range I usually visit is made of thick steel. I don't know if it's ever been tested.

 

[Carl N. Brown]

After a couple of decades of shooting mostly High Velocity .22 LR in my Ruger Mk II, the bolt stop pivot separated from the bolt stop pin. I ordered a new bolt stop pin and recoil spring assembly.

Curious, I tried Win .22 Short High Velocity and found they would eject, cock the hammer, and feed from the magazine with the old, weak recoil spring assembly. 'Twould be interesting to see if the old spring assembly could be tweeked to run with Quiet .22s.