Underwood Ammo .45 Colt 250 Grain Full Metal Jacket Nickel Plated Brass Cased Pistol Ammo 50 Rounds. Specifications for Underwood Ammo .45 Colt 250 Grain Full Metal Jacket Nickel Plated Brass Cased Pistol Ammunition: Manufacturer: Underwood Ammo Caliber: .45 Colt Number of Rounds: 50 Bullet Type: Full Metal Jacket (FMJ) Bullet Weight: 250 grain Cartridge Case Material: Nickel Plated Brass Muzzle Velocity: 960 ft/s Muzzle Energy: 512 ft-lbs Application: Hunting Package Type: Box Primer Style: Centerfire Lead Free: No Package Contents: Underwood Ammo .45 Colt 250 Grain Full Metal Jacket Nickel Plated Brass Cased Pistol Ammo Underwood Ammo 432: .45 Colt 250 Grain Full Metal Jacket Nickel Plated Brass Cased Pistol Ammo 50 Rounds