In 1873, less than a decade after the Civil War and when Westward expansion was in full gallop, Winchester introduced the first successful centerfire cartridges. Winchester has set the world standard in superior ammunition performance and innovation for more than a century. To millions of hunters and shooters worldwide, the name "Winchester" means quality and performance. No matter the sport, game, or protection, you can always depend on the Winchester Ammunition to perform as promised.50 Round BoxFeatures and Specifications:Manufacturer Number: USA45JHPUSA AmmoCaliber: .45 Automatic Colt PistolBullet Type: Jacketed Hollow Point (JHP)Bullet Weight: 230 GrainsRounds: 50 Rounds per BoxMuzzle Velocity: 880 FPSMuzzle Energy: 396 ft/lbsBullet Diameter: .451Casing: BrassFeatures:Proven AccuracyHigh Energy DepositPositive FunctioningNo Barrel LeadingHigh VelocityUsage: Personal Protection