CCI Clean-22 Pink 22 Long Rifle 40gr LRN Rimfire Ammo – 400 Rounds – The Clean-22 Pink ammunition features a polymer bullet coating greatly reduces lead fouling in the barrel without leaving residue, cuts lead buildup in suppressors 60 to 80 percent, and is a 40-grain lead round nose bullet. These containers have 400 rounds per container. Polymer Bullet Coating Greatly Reduces Lead Fouling In The Barrel Without Leaving Residue Cuts Lead Buildup In Suppressors 60 To 80 Percent 40-Grain Lead Round Nose Bullets-Red For High Velocity, Blue For Sub-Sonic Optimized Bullet Geometry For Improved Accuracy Reliable Function In Semi-automatic Firearms Great Option Both Casual And Competitive Shooters