Underwood Ammo produces this ammunition with the Lehigh Defense Xtreme Hunter projectile. The Lehigh Defense Xtreme Hunter features a lead free solid brass construction that is made on state of the art precision CNC machines. These projectiles are engineered for maximum penetration to produce a massive permanent wound cavity. This wound channel is 100% larger than anything produced by a traditional expanding hollow point and the solid brass construction will punch through heavy brush or barriers without deformation or deflection. Thick hide and bone carried by big game is not match for the Xtreme Hunter. It's a fantastic choice for hunting heavy cover far afield, but it also makes for a great home defense round. The round is loaded with flash suppressed powder to preserve your night vision should you need to take a critical shot at night.