Underwood Ammo 9mm Luger +P 124 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammo 20 Rounds. Specifications for Underwood Ammo 9mm Luger +P 124 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammunition: Manufacturer: Underwood Ammo Caliber: 9mm Luger +P Number of Rounds: 20 Bullet Type: Jacketed Hollow Point (JHP) Bullet Weight: 124 grain Cartridge Case Material: Nickel Plated Brass Muzzle Velocity: 1225 ft/s Muzzle Energy: 413 ft-lbs Application: Self-Defense Package Type: Box Primer Style: Centerfire Lead Free: No Dimensions: 1.35 X 2.25 X 2.65 in Length: 2.65 in Package Contents: Underwood Ammo 9mm Luger +P 124 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammo Underwood Ammo 134: 9mm Luger +P 124 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammo 20 Rounds