Underwood Ammo .45 Colt 135 Grain Solid Monolithic Nickel Plated Brass Cased Pistol Ammo 20 Rounds. Specifications for Underwood Ammo .45 Colt 135 Grain Solid Monolithic Nickel Plated Brass Cased Pistol Ammunition: Manufacturer: Underwood Ammo Caliber: .45 Colt Number of Rounds: 20 Bullet Type: Monolithic Bullet Weight: 135 grain Cartridge Case Material: Nickel Plated Brass Muzzle Velocity: 1410 ft/s Muzzle Energy: 596 ft-lbs Application: Deer Target Self-Defense Package Type: Box Included Accessories: None Primer Style: Centerfire Lead Free: Yes Height: 1.8 in Dimensions: 1.80 X 3.25 X 5.00 in Width: 3.25 in Package Contents: Underwood Ammo .45 Colt 135 Grain Solid Monolithic Nickel Plated Brass Cased Pistol Ammo Underwood Ammo 846: .45 Colt 135 Grain Solid Monolithic Nickel Plated Brass Cased Pistol Ammo 20 Rounds