Federal American Eagle Suppressor 22 Long Rifle 45gr CPRN Rimfire Ammo - 50 Rounds - American Eagle Rimfire Suppressor rounds perform to their ballistic peak in suppressed firearms, thanks to carefully selected propellants, bullet weights and primers. Their sub-sonic loading eliminates the super-sonic "crack" suppressors can't silence. In addition, special clean-burning powders minimize fouling while reliably functioning in semi-automatic firearms. Suppressor loads are priced for volume shooting. Bullet weights and profiles carefully selected for suppressed firearms Clean burning powders for easier cleanup Subsonic muzzle velocities Reliable function, feeding and ignition Federal brass cases