Hornady 17 HM2 Ammo 50rnds

1 in every 50 rounds the rim blows out where the firing pin strikes. Causing un-burnt powder to fly into your face. Would not recommend unless you are completely out of hm2 ammo. Buy a small amounts until you find another brand. I purchased 2,000 rounds. Nothing but problems. EABCO Suggestion: Your firing pin may be a little too sharp. We used to see this problem occasionally on 10/22s and it was solved with a wider faced firing pin. See http://www.eabco.net/Ruger-1022-Accuracy-Firing-Pin-for-Minimal-Rim-Disruption_p_13315.html