Ammo Caliber: 7.62X39 - Bullet Weight: 123 Grain - Bullet Type: Full Metal Jacket (FMJ) - Use Type: Range Training - Ammo Casing: Steel - Quantity: 500 - Primer Type: Berdan - This high quality ammo features lacquered steel case construction; hence the Brown Bear name. Brown Bear offers high quality at reasonable prices. This product uses Berdan priming for long shelf life and sure-fire ignition. Brown Bear is loaded to exacting standards normally reserved for military.