CCI Ammunition CCI, 22 LR, 45 Grain, Lead Round Nose, 50 Round Box 975CC Lose the noise-keep the fun. CCI Quiet-22 Semi-Auto drastically reduces the volume of standard 22 LR rounds, while cycling flawlessly through semi-automatic rifles and handguns. The accurate, low-velocity loads provide the sensation of shooting through a suppressor-without the suppressor-and are perfect for new shooters