Description Depending on caliber and application, Hornady's Black has the best bullet options are selected for each round to deliver the accuracy and performance you've come to expect from Hornady. Suppressed or unsuppressed, supersonic or subsonic, rifle, mid-length, carbine, or pistol, Hornady Black has optimized offerings for superior performance in a variety of platforms. Special clean-burning propellants result in a reduced muzzle flash, even in short-barreled rifles. Internal ballistics and bullet weights are optimized for accuracy and consistency. Specifications: 308 Win/155 gr/ Hornady A-Max (AMX)/20 Per Box/10 CsCaliber: 308 WinRounds Per Box: 20Casing Material: BrassMuzzle Energy: 2795 ft lbsMuzzle Velocity: 2850 fpsApplication: Target ShootingBoxes Per Case: 10Bullet Type: Hornady A MaxBullet Weight: 155 gr