Effective self-defense requires ammunition that provides consistent expansion, optimum penetration and superior terminal performance.Hst's specially designed hollow point won't plug while passing through a variety of barriers, and the bullet jacket and core hold together to provide nearly 100 percent weight retention through even the toughest materials.Caliber: 9mm LugerBullet Type: HST Jacketed Hollow PointBullet Weight: 124 grMuzzle Energy: 364 ft lbsMuzzle Velocity: 1150 fpsRounds Per Box: 20Boxes Per Case: 10Application: Personal/Home DefenseCasing Material: Nickel-PlatedHazair: Yes