High Standard and HV Ammo

GunFyter

Looking at a couple Series 107 HS...one is a Sport King, the other is a Supermatic Citation. The Sport King was built between 78 and 81, and the Citation between 75 and 81. Is the High Velocity still off limits in these? Not sure if the Target Ammo was recommended for just the older guns. Thanks

perry shooter

Hello The pistol will last a lot longer with standard velocity ammo. You might want to check with brownells and see if they stock an extra heavy spring for the model 107 . High velocity will most likely batter the pistol with factory spring . I have seen some High Standard frames crack but don't know if gun was shot with high velocity or not. Your mileage may vary.PERRY SHOOTER

md1634

I'm not that familiar with High Standard target pistols, do they all have problems with high vel ammo?

perry shooter

Hello all 22 semi auto pistols are straigh BLOW-BACK operation .This means the recoil presses against a spring . The spring needs to be matched to the ammo the more power the ammo "HIGH VELOCITY" the stronger the spring needs to be or the slide will slam back to be stopped by the frame. Guns like the S&W model 41 the Hammerli model 208S the High Standard target models and a host of others are made to shoot standard velocity ammo.You need to read the operator manual to see what ammo is suited. The early Colt Woodsman first series broke so many parts that they retro fitted the rear grip frame to take high velocity. ammo.

GunFyter

Thanks for the info, Perry. As long as were on target models, would a newer Ruger MKII require target Ammo? Perish the thought since I have only used HV through mine

JohnStimson

High Standard pistols beginning with the 102 series and all later series should be used with standard velocity ammunition. The manuals clearly state that either standard velocity or high velocity ammunition is OK but experience on numerious target shooters had led to the general acceptance that only standard velocity is suitable for long term usage in these pistols. Otherwise a fatigue crack will develop in the frame running from the right rear corner of the magazine well across teh frame rail to the pocket for the slide lock. Even with the use of standard velocity ammunition a crack may eventually form unless teh slide recoil spring is replaced every 15,000 to 20,000 rounds. This spring because of how it is mounted wears on its outside diameter as it slides in its hole and on the inside diameter where it runs the retracting rod. This wear gradually reduces the spring force, increases the battering of teh stop lug and raises stresses in the frame from teh slide impacting the frame stop lug.

If you are buying a High Standard, it is probably a good idea to look for the frame crack before the purchase and to replace the spring immediately since it is doubtful that you will know how much the gun has been shot or how much teh spring has worn.