I only have thirty or so rounds through this barrel, I had a .22 M and P bought for my daughter I was also checking out that day. I used some hot PPU ammo 1540 fps, 660 ft lbs, the barrel worked flawlessly and my smile was from ear to ear, my poor little
Awesome barrels. Sigs are the best in my opinion. Best deal on them I have found yet and transactions were smooth and flawless.
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