Underwood Ammo 10mm Auto 180 Grain Full Metal Jacket Nickel Plated Brass Cased Pistol Ammo 50 Rounds. Specifications for Underwood Ammo 10mm Auto 180 Grain Full Metal Jacket Nickel Plated Brass Cased Pistol Ammunition: Manufacturer: Underwood Ammo Caliber: 10mm Auto Number of Rounds: 50 Bullet Type: Full Metal Jacket (FMJ) Bullet Weight: 180 grain Cartridge Case Material: Nickel Plated Brass Muzzle Velocity: 1300 ft/s Muzzle Energy: 676 ft-lbs Application: Hunting Package Type: Box Primer Style: Centerfire Lead Free: No Package Contents: Underwood Ammo 10mm Auto 180 Grain Full Metal Jacket Nickel Plated Brass Cased Pistol Ammo Underwood Ammo 241: 10mm Auto 180 Grain Full Metal Jacket Nickel Plated Brass Cased Pistol Ammo 50 Rounds