When it misfires, I rotate the cartridge 180 degrees and it fires...After reading alot of ammo posts, I believe it is the ammo itself, Remington Golden terds. I bought some mini mags today and out of 100 I had 0 misfires....with Remington it was 1 out of every clip darn near. I thought 22 rimfire ammo was all the same... now I see I had my head up my butt and didn't know crap. You guys have helped me SOOOOOOOO much, I hope to learn something so I can repay the debt.