Specifications for Sierra GameChanger 7mm Remington Magnum 150 grain Sierra Tipped GameKing Brass Centerfire Rifle Ammunition: Caliber: 7mm Remington Magnum Number of Rounds: 500 Bullet Type: Sierra Tipped GameKing Bullet Weight: 150 grain Cartridge Case Material: Brass Muzzle Velocity: 3000 ft/s Package Type: Box Primer Location: Centerfire