A Friend Gave My Grandsons 2000 rds of 22's.

They shot about 600 rounds .. had a couple misfires .. then started on a box of 50 and half of them would not fire. We turned them in the chamber and tried again and got some to go off but there were some that didn't.

We switched to Agula ammo and had no issues. I brought the stuff home and shot the rest of it. These would not fire no matter where I hit the rim with the firing pin.

I had others that would go off on the second try after turning the cartridge a bit. And I had some that took 3 turns to find someplace where there was some priming. But these would not go off no matter what.