HSM Ammunition Self Defense .357 Magnum 180 Grain Brass Cased Centerfire Pistol Ammo 50 Rounds. The bullets are assembled with high quality components of primers cases powders and are non-corrosive in boxer-primed reloadable cases. Specifications for HSM Ammunition Self Defense .357 Magnum 180 Grain Brass Cased Centerfire Pistol Ammunition: Manufacturer: HSM Ammunition Caliber: .357 Magnum Number of Rounds: 50 Bullet Type: Flat Nose (FN) Bullet Weight: 180 grain Cartridge Case Material: Brass Application: Target Self-Defense Package Type: Box Included Accessories: None Primer Style: Centerfire Lead Free: No Color: Brass Features of HSM Ammunition Self Defense .357 Magnum 180 Grain Brass Cased Centerfire Pistol Ammunition: Extreme Terminal performance bullet Muzzle Velocity: 1050 fps Muzzle Energy: 441 ft. lbs. Designed for home-protection/self defense Package Contents: HSM Ammunition Self Defense .357 Magnum 180 Grain Brass Cased Centerfire Pistol Ammunition HSM Ammunition HSM-357-12-N: Self Defense .357 Magnum 180 Grain Brass Cased Centerfire Pistol Ammo 50 Rounds