Blazer uses a non reloadable case made from high strength, aircraft gauge aluminum alloy. Clean burning propellants deliver optimum velocity while ensuring consistent chamber pressures. Cases are coated for smooth functioning and corrosion resistance. Non corrosive primers for highly sensitive and reliable performance. Blazer delivers all the performance of high priced ammunition for a fraction of the cost. Product Specifications Caliber: 10mm Bullet Weight: 200 gr Bullet Type: FMJ Muzzle Energy: 490 ft lbs Muzzle Velocity: 1050 fps Quantity: 50 Rounds per box