Atomic Ammunition .300wm 220 Grain Match Sierra HPBT 20 Rounds Features: Atomic s 300 Win Mag Match grade ammunition is made with only the very best components available such as new brass match grade powder and 220 grain MatchKing hollow point boat tail bullets. This ammunition is designed for match target and tactical use the bullets loaded may not be appropriate for use in hunting big game. Atomic Ammunition .300wm 220 Grain Match Sierra HPBT 20 Rounds Specifications: Caliber: .300 Winchester Magnum Number of Rounds: 20 Bullet Type: Jacketed Hollow Point Bullet Weight: 220 grain Cartridge Case Material: Brass Muzzle Velocity: 2600 ft/s Primer Location: Centerfire