My Mask has never given me issues on either rifle or pistol. Ruger Charger, 2 different 10/22's, Browning Buckmark pistol, Keltec, Taurus TX22, and a Beretta Bobcat. I use either CCI standard velocity or Ely Contact. I just bought some CCI Quiet Semi-Auto and it's run just fine. The Contact cost's a little more but is very clean and accurate. Lately I have found several boxes of CCI that have rounds that the bullet is a little cocked in the brass. You can't even pull the round out of the plastic tray.

