Underwood Ammo .45 Colt +P 250 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammo 20 Rounds. Specifications for Underwood Ammo .45 Colt +P 250 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammunition: Manufacturer: Underwood Ammo Caliber: .45 Colt +P Number of Rounds: 20 Bullet Type: Jacketed Hollow Point (JHP) Bullet Weight: 250 grain Cartridge Case Material: Nickel Plated Brass Muzzle Velocity: 1400 ft/s Muzzle Energy: 1088 ft-lbs Application: Hunting Package Type: Box Primer Style: Centerfire Lead Free: No Package Contents: Underwood Ammo .45 Colt +P 250 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammo Underwood Ammo 434: .45 Colt +P 250 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammo 20 Rounds