Caliber: 223 Remington - Weight: 62 Grains - Bullet Style: Hollow Point (Bi-Metal) - Case Type: Lacquer Coated Steel - Muzzle Velocity: 3050 fps - Rounds Per Box: 20 - 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.