CCI Ammunition Clean-2 Hyper Velocity .22 Long Rifle 31 Grain Round Nose Brass Rimfire Ammo 50 Rounds. Specifications for CCI Ammunition Clean-2 Hyper Velocity .22 Long Rifle 31 Grain Round Nose (RN) Brass Cased Rimfire Ammunition: Manufacturer: CCI Ammunition Caliber: .22 Long Rifle Number of Rounds: 50 Bullet Type: Round Nose (RN) Bullet Weight: 31 grain Cartridge Case Material: Brass Muzzle Velocity: 1550 ft/s Application: Target Primer Style: Rimfire Velocity: 1550 fps Features of CCI Ammunition .22 Long Rifle 31 Grain LN Purple Brass Cased Ammunition Polymer bullet coating greatly reduces lead fouling in the barrel without leaving residue Cuts lead buildup in suppressors 60 to 80 percent Optimized bullet geometry for improved accuracy Reliable function in semi-automatic firearms Great option both casual and competitive shooters Package Contents: CCI Ammunition Clean-2 Hyper Velocity .22 LR 31 Grain LN Brass Rimfire Ammunition What is CCI Ammunition Clean-2 Hyper Velocity .22 Long Rifle 31 Grain Round Nose (RN) Brass Cased Rimfire Ammunition good for? The manufacturer says that it is best for target.CCI Ammunition 954CC: Clean-2 Hyper Velocity .22 LR 31 Grain LN Brass Rimfire Ammo 50 Rounds