Underwood Ammo .40 S&W 155 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammo 20 Rounds. Specifications for Underwood Ammo .40 S&W 155 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammunition: Manufacturer: Underwood Ammo Caliber: .40 S&W Number of Rounds: 20 Bullet Type: Jacketed Hollow Point (JHP) Bullet Weight: 155 grain Cartridge Case Material: Nickel Plated Brass Muzzle Velocity: 1300 ft/s Muzzle Energy: 582 ft-lbs Application: Hunting Package Type: Box Primer Style: Centerfire Lead Free: No Package Contents: Underwood Ammo .40 S&W 155 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammo Underwood Ammo 223: .40 S&W 155 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammo 20 Rounds