Ammo Specifications Caliber: 7mm Rem Mag Item Number: 80591 Bullet Type: InterLock Bullet Weight: 139 GR Muzzle Energy: 2,597 ft lbs Muzzle Velocity: 2,901 fps Quantity: 20 rounds per box Loaded with legendary Hornady InterLock bullets in weights that have been deer hunting favorites for decades, American Whitetail ammunition combines generations of ballistics know-how with modern components and the technology you need to take the buck of a lifetime! Legendary Hornady InterLock bullets Optimized loads tailored specifically for deer hunting Select propellants that deliver consistent accuracy and performance