BXS Solid Expansion Big Game & Deer is strategically designed to leave a lethal mark on large game with tough hide. The polymer tipped copper bullet is constructed for controlled expansion and deep penetration, creating a devastating impact. The nickel-plated shellcases resist corrosion and improve feeding, so you can quickly deliver with knockdown assurance. Ammo Specifications Caliber: 300 Winchester Magnum Bullet Type: BXS Bullet Weight: 180 gr Muzzle Velocity: 3000 fps Muzzle Energy: 3597 ft/lbs Quantity: 20-Rounds per box