Ammo Specifications Caliber: 300 Winchester Magnum Bullet Weight: 180 gr Bullet Style: Trophy Bonded Tip Muzzle Velocity: 2960 fps Muzzle Energy: 3502 ft/lbs Quantity: 20/Box You spend all year dreaming of the moment of truth why trust it to anything less than the best. Vital-Shok is available with the world s finest big game bullet from Trophy. Match that with world-class brass, select powders and legendary primers and you get ammunition you can truly believe in.