Underwood Ammo produces this ammunition with the Lehigh Defense Xtreme Penetrator projectile. The Lehigh Defense Xtreme Penetrator features a lead free solid brass construction that is made on state of the art precision CNC machines. These projectiles are engineered with a unique nose that increases hydraulic velocity and pressures with deep penetration to produce a devastating wound column. The blunt nose imparts massive energy transfer while the solid brass construction and cutting edges will punch through barriers without deformation or deflection. This round is a fantastic choice for home defense, but it also makes for a great hunting round against tough hides and thick bone. The round is loaded with flash suppressed powder to preserve your night vision should you need to take a critical shot at night.