Underwood Ammo .380 ACP +P 68 Grain Xtreme Defender Solid Monolithic Nickel Plated Brass Cased Pistol Ammo 20 Rounds. Specifications for Underwood Ammo .380 ACP +P 68 Grain Xtreme Defender Solid Monolithic Nickel Plated Brass Cased Pistol Ammunition: Manufacturer: Underwood Ammo Caliber: .380 ACP +P Number of Rounds: 20 Bullet Type: Monolithic Bullet Weight: 68 grain Cartridge Case Material: Nickel Plated Brass Muzzle Velocity: 1400 ft/s Muzzle Energy: 296 ft-lbs Application: Hunting Package Type: Box Primer Style: Centerfire Lead Free: Yes Package Contents: Underwood Ammo .380 ACP +P 68 Grain Xtreme Defender Solid Monolithic Nickel Plated Brass Cased Pistol Ammo Underwood Ammo 639: .380 ACP +P 68 Grain Xtreme Defender Solid Monolithic Nickel Plated Brass Cased Pistol Ammo 20 Rounds