Sellier & Bellot 357 Magnum 158 Grain Full Metal Jacket Brass Cased Pistol Ammo 50 Rounds. Standard lead core with a metallic jacket. Best for training and target shooting applications Specifications for Sellier & Bellot 357 Magnum 158 Grain Full Metal Jacket Brass Cased Pistol Ammunition: Manufacturer: Sellier & Bellot Caliber: .357 Magnum Number of Rounds: 50 Bullet Type: Full Metal Jacket (FMJ) Bullet Weight: 158 grain Cartridge Case Material: Brass Muzzle Velocity: 1400 ft/s Application: Protection Package Type: Box Primer Style: Centerfire Fabric/Material: Reliable 65 carbon steel Package Contents: Sellier & Bellot 357 Magnum 158 Grain Full Metal Jacket Brass Cased Pistol Ammunition Sellier & Bellot SB357A: 357 Magnum 158 Grain Full Metal Jacket Brass Cased Pistol Ammo 50 Rounds