The Underwood Ammo 823 Xtreme Penetrator 9mm Luger +P+ 115gr Solid Monolithic round is engineered for shooters who demand consistent performance from a compact, high performance handgun load. Built around Lehigh Defense’s Xtreme Penetrator solid copper bullet, this cartridge is designed to deliver reliable feeding and deep, straight-line penetration while maintaining tight tolerances and uniform ballistics.

This 9mm Luger +P+ load uses a 115 grain lead-free copper projectile seated in nickel-plated brass cases, offering smooth chambering and enhanced corrosion resistance. Its unique fluted nose profile is optimized to maximize hydraulic displacement in soft tissue, creating a larger permanent wound cavity without relying on traditional expansion. Ideal for defensive carry, hunting medium to large game, or dedicated training with suppressor-safe ammunition, this round reflects Underwood Ammo’s focus on precision manufacturing and innovative bullet design.

Key Features:

• Manufacturer: Underwood Ammo
• Model: 823 Xtreme Penetrator
• Caliber: 9mm Luger +P+
• Bullet Type: Solid Monolithic Xtreme Penetrator
• Bullet Weight: 115 Grains
• Casing: Nickel-Plated Brass
• Muzzle Velocity: 1300 Fps
• Muzzle Energy: 432–465 Ft Lbs
• Rounds Per Box: 20