Underwood Ammo Xtreme Penetrator Features The Underwood Ammo Xtreme Penetrator bullet is a solid copper lead free precision CNC machined projectile designed by Lehigh Defense to maximize penetration depth. Its blunt nose provides initial energy transfer and straight deep penetration while still allowing reliable magazine feeding in semi auto pistols. The solid copper construction and cutting edges punch through entry barriers without deforming or deflecting off course. At 115 grains and 1150 fps this 9mm load produces 338 ft lbs of energy for authoritative terminal performance against medium to large threats. Nickel plated brass casings improve feeding across firearm actions and resist corrosion better than traditional brass during long term storage. The plating also simplifies cleanup during reloading and keeps the cases from tarnishing when they contact leather moisture or other metals. Each 20-round box gives shooters a supersonic penetration focused round for hunting and personal defense applications alike. The combination of the Xtreme Penetrator design and durable casing makes this load a dependable choice for 9mm pistol owners. Underwood Ammo Xtreme Penetrator Specifications Manufacturer: Underwood Ammo Model: Xtreme Penetrator Caliber: 9mm Bullet Weight: 115 gr Bullet Type: Solid Monolithic Muzzle Velocity: 1150 fps Muzzle Energy: 338 ft lbs Casing Material: Nickel-Plated Brass Rounds Per Box: 20 Available At: GrabAGun