Federal's American Eagle Syntech 40 Smith & Wesson cartridges feature a 165-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 1050 fps and 404 ft lbs of power, these come packaged as 50 rounds per box, 10 boxes per case.