PMC Bronze .50 BMG 660-grain FMJ-BT is a popular, commercially available round designed for long-range target shooting and range training.
 
Key Specifications
Caliber: .50 BMG (12.7x99mm NATO)
Bullet Weight: 660 grains
Bullet Type: Full Metal Jacket Boat-Tail (FMJ-BT)
Case Material: Boxer-primed brass (reloadable)
Muzzle Velocity: ~2,950 to 3,080 fps (depending on test barrel length)
Muzzle Energy: 13,688 foot-pounds
Packaging: Typically sold in 10-round boxes or 200-round cases
 
Features & Performance
Affordability: PMC (Precision Made Cartridges) provides one of the more cost-effective factory options for civilian .50 caliber shooters. 
Design: The boat-tail design reduces aerodynamic drag to help maintain stability and accuracy at extended distances.
Clean & Reliable: Built with non-corrosive boxer primers and clean-burning powders to minimize excessive barrel wear during standard range sessions.