Underwood 10mm 180gr XTP Jacketed Hollow Point

Premium 10mm Self-Defense and Hunting Ammunition

Underwood Ammo's 10mm 180-grain XTP rounds represent a serious choice for shooters who demand performance when it matters most. Built around Hornady's eXtreme Terminal Performance bullets, these rounds combine proven ballistics with real-world reliability.

Bullet Performance

Hornady XTP Design: The XTP bullet is engineered for controlled expansion and deep penetration. The hollow-point design initiates rapid, predictable expansion while the thick jacket ensures the bullet stays together through intermediate barriers.

• Velocity: 1300 feet per second
• Muzzle Energy: 676 foot-pounds
• Ballistic Coefficient: 0.164 (G1)
• Sectional Density: 0.161

Case and Powder

Underwood uses nickel-plated brass cases that resist corrosion and tarnishing far better than standard brass. The nickel plating also improves feeding reliability across all firearm actions and makes cleanup during reloading easier.

Flash-suppressed powder formulation preserves your night vision in low-light defensive situations—a critical advantage when every second counts.

Specifications

• Cartridge: 10mm Auto
• Bullet Weight: 180 grains
• Bullet Type: Jacketed Hollow Point (XTP)
• Case Type: Nickel-plated brass, boxer-primed, reloadable
• Rounds Per Box: 20
• Supersonic: Yes (travels faster than the speed of sound)
• Suppressor Safe: Yes

Applications

This ammunition is suitable for self-defense, hunting, and sport shooting. Each round is field-tested in real firearms to ensure performance in actual use conditions.