Fusion was the first rifle ammunition specifically built for deer hunting and it s still the best, offering the largest expansion and highest weight retention in head-to-head comparisons againt the competition. With a molecularly fused jacket and a pressure-formed core, Fusion transfers maximum energy on target. It s like hitting a deer with a freight train full of science. Product Specifications Caliber: 45-70 Government Bullet Weight: 300 gr Bullet Type: Fusion Soft Point Muzzle Velocity: 1850 fps Muzzle Energy: 2280 ft-lbs Quantity: 20 Rounds per box