Federal's American Eagle Syntech 45 ACP cartridges feature a 230-grain total Syntech jacket projectile cased in brass. The exclusive polymer coating in American Eagle Syntech prevents harsh metal-on-metal contact between the bullet and bore, eliminating copper and lead fouling. With a muzzle velocity of 830 fps and 352 ft lbs of power, these come packaged as 50 rounds per box, 10 boxes per case.