The Underwood Ammo 810 Xtreme Defense 10mm Auto 115gr Solid Monolithic round is engineered for consistent performance in demanding handgun use. Built around Underwood’s Xtreme Defender projectile, this load combines a solid copper bullet with carefully tuned velocity to deliver deep, predictable penetration and a large permanent wound cavity while maintaining manageable recoil.

This 10mm Auto ammunition is well suited for personal protection, hunting medium game, and regular range training where reliable feeding and repeatable ballistics are important. The nickel-plated brass case enhances corrosion resistance and smooth extraction, while the lead-free, supersonic copper bullet is designed to perform consistently through common barriers. Underwood Ammo’s focus on precision manufacturing and field testing results in a round that reflects the company’s reputation for thoughtful design and dependable craftsmanship.

Key Features:

• Manufacturer: Underwood Ammo
• Model: 810 Xtreme Defense
• Caliber: 10mm Auto
• Condition: New
• Bullet Type: Solid Monolithic Copper
• Bullet Weight: 115 Grains
• Muzzle Velocity: 1700 Feet Per Second
• Muzzle Energy: 738 Foot-Pounds
• Case Material: Nickel-Plated Brass
• Rounds Per Box: 20