Underwood Ammo .380 ACP 90 Grain Solid Monolithic Nickel Plated Brass Cased Pistol Ammo 20 Rounds. Specifications for Underwood Ammo .380 ACP 90 Grain Solid Monolithic Nickel Plated Brass Cased Pistol Ammunition: Manufacturer: Underwood Ammo Caliber: .380 ACP Number of Rounds: 20 Bullet Type: Monolithic Bullet Weight: 90 grain Cartridge Case Material: Nickel Plated Brass Muzzle Velocity: 1100 ft/s Muzzle Energy: 242 ft-lbs Application: Hunting Package Type: Box Primer Style: Centerfire Lead Free: Yes Dimensions: 1.20 X 2.70 X 5.70 in Height: 1.2 in Length: 5.7 in Package Contents: Underwood Ammo .380 ACP 90 Grain Solid Monolithic Nickel Plated Brass Cased Pistol Ammo Underwood Ammo 643: .380 ACP 90 Grain Solid Monolithic Nickel Plated Brass Cased Pistol Ammo 20 Rounds