This is 475 LINEBAUGH Hornady 400gr. XTP Hollow Point Ammo. This Hornady Custom pistol ammo is loaded with the Hornady XTP (Extreme Terminal Performance) bullets which are supremely accurate, and deliver maximum knockdown power. Brass,primers and powder are chosen to ensure optimal pressure, velocity and consistency.Muzzle Velocity: 1300 fps. Muzzle Energy: 1501 ft lbs. Packed 20rds. per box.