Caliber: 500 S&W Magnum - Weight: 300 Grains - Bullet Style: Flex Tip eXpanding - Case Type: Brass - Muzzle Velocity: 2050 fps - Muzzle Energy: 2868 ft. lbs. - Rounds Per Box: 20 - All Hornady Custom pistol ammo is loaded with either the famous Hornady XTP (Extreme Terminal Performance) bullet our fully-encapsulated FMJ or our new FTX bullet. All are supremely accurate and deliver maximum knockdown power.