Underwood Ammo 9mm Luger +P 90 Grain Xtreme Defender Solid Monolithic Nickel Plated Brass Cased Pistol Ammo Platinum Edition 20 Rounds. Specifications for Underwood Ammo 9mm Luger +P 90 Grain Xtreme Defender Solid Monolithic Nickel Plated Brass Cased Pistol Ammunition: Manufacturer: Underwood Ammo Caliber: 9mm Luger +P Number of Rounds: 20 Bullet Type: Monolithic Bullet Weight: 90 grain Cartridge Case Material: Nickel Plated Brass Muzzle Velocity: 1475 ft/s Muzzle Energy: 435 ft-lbs Application: Hunting Package Type: Box Primer Style: Centerfire Lead Free: Yes Package Contents: Underwood Ammo 9mm Luger +P 90 Grain Xtreme Defender Solid Monolithic Nickel Plated Brass Cased Pistol Ammo Underwood Ammo 876: 9mm Luger +P 90 Grain Xtreme Defender Solid Monolithic Nickel Plated Brass Cased Pistol Ammo Platinum Edition 20 Rounds