Underwood Ammo Xtreme Defense 10mm Auto 115gr Solid Monolithic - Box or Case

The Underwood Xtreme Defense load delivers deep-penetration terminal performance in the 10mm Auto, purpose-built for personal defense. This round uses a 115-grain Solid Monolithic bullet driven to 1700 fps at the muzzle, producing 738 ft lbs of energy - a serious combination of mass and velocity for a semi-auto pistol cartridge.

Rather than relying on expansion, the Solid Monolithic projectile uses an optimized nose flute designed to control fluid dynamics on impact. The result is deep, consistent penetration (up to 18 inches) paired with a wide permanent wound cavity along the bullet's path, giving the load a distinct approach to handgun terminal performance. Underwood rates this configuration as supersonic.

Each round is assembled in a nickel-plated brass case for smooth feeding and corrosion resistance, making this load a reliable choice for everyday carry, home defense, and range use. Pick up a single box or stock up with a full case.

Your purchase options:

• Box - 20 Rounds
• Case - 200 Rounds (10 Boxes)