Caliber: 10 MM - Bullet Type: JHP/XTP - Bullet Weight: 180 GR - Muzzle Energy: 556 ft lbs - Muzzle Velocity: 1180 fps - 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.