The future of rimfire is here. CCI Clean-22 uses an exclusive polymer bullet coating to greatly reduce copper and lead fouling in the barrel?without leaving a residue. It also cuts lead buildup in suppressors 60 to 80 percent. Both the Sub-Sonic and High Velocity loads feature a 40-grain round nose lead bullet with geometry that's been optimized for accuracy. With dependable CCI priming and consistent propellant Clean-22 provides flawless cycling through semi-automatics and all 22 LR firearms.Features:Polymer bullet coating greatly reduces lead fouling in the barrel without leaving residueCuts lead buildup in suppressors 60 to 80 percent40-grain lead round nose bullets?red for High Velocity blue for Sub-SonicOptimized bullet geometry for improved accuracyReliable function in semi-automatic firearmsGreat option both casual and competitive shooter