This is a Barrett Full Metal Jacket known as the Ammo chambered in 50 BMG, model 14670.
This .50 BMG ammunition is ready for action. Encased in Barrett head-stamped brass" every cartridge is loaded with noncorrosive powder and primers as well as a 661 gr projectile using state-of-the-art machinery.
Features:
50 BMG
2,800 Feet per second from a 32 barrel;661 Grain M33 full metal jacket;10 Rounds per box