Fort Scott Munitions TUI ammo is a match-grade bullet made of solid copper and engineered to Tumble Upon Impact providing devastating stopping power. While designed as precision ammo for rifle hunters, Fort Scott's multi-patented TUI technology also makes them ideal rounds for home and self-defense or law enforcement. Ammo Specifications Caliber: 300 AAC Blackout Bullet Weight: 190 Grain Bullet Type: Solid Copper Spun (SCS) Muzzle Velocity: 960 fps Muzzle Energy: 235 ft-lbs Quantity: 20 Rounds per box