Hornady

Caliber: 450 Bushmaster - Weight: 250 Grains - Bullet Type: SST - Muzzle Energy: 2686 ft lbs - Muzzle Velocity: 2200 fps - Casing Material: Brass - Rounds Per Box: 20 - Nicknamed The Thumper the 450 Bushmaster is the most radical cartridge ever chambered in production AR-15 type firearms. Hornady brings big bore performance to the most popular semi-automatic rifle in America opening a whole new world of hunting to the battle-proven platform.