Underwood 10mm 155gr XTP Jacketed Hollow Point
Underwood's 10mm 155gr XTP ammunition delivers 1500 fps velocity with Hornady's proven Extreme Terminal Performance bullets. Nickel-plated brass, flash-suppressed powder, and 775 ft-lbs of muzzle energy make this round ideal for self-defense and hunting.
Premium 10mm Self-Defense and Hunting Ammunition
Underwood's 10mm 155-grain XTP ammunition represents a thoughtful balance of power, reliability, and real-world performance. This round is engineered for shooters who demand both accuracy and terminal effectiveness.
Bullet Design and Performance
The heart of this ammunition is Hornady's eXtreme Terminal Performance (XTP) bullet—a design proven across decades of field use. The XTP delivers:
- Controlled expansion for reliable terminal performance
- Deep penetration to ensure stopping power
- Excellent accuracy from a carefully engineered design
- Consistent performance across a wide range of firearms
Velocity and Energy
Loaded to 1500 feet per second, this ammunition generates 775 foot-pounds of muzzle energy—sufficient for both hunting medium game and self-defense applications. The round is supersonic, ensuring predictable ballistics and performance.
Case and Powder
Underwood uses nickel-plated brass casings, which offer several practical advantages:
- Enhanced corrosion resistance compared to traditional brass
- Improved feeding reliability in all firearm actions
- Better appearance and easier cleanup during reloading
- Resistance to tarnishing during storage
The ammunition is loaded with flash-suppressed powder, preserving your vision in low-light defensive situations—a critical consideration for real-world use.
Specifications
- Caliber: 10mm Auto
- Bullet Weight: 155 grains
- Bullet Type: Jacketed Hollow Point (XTP)
- Velocity: 1500 fps
- Muzzle Energy: 775 ft-lbs
- Case: Nickel-Plated Brass, Boxer-Primed, Reloadable
- Ballistic Coefficient (G1): 0.137
- Sectional Density: 0.138
- Suppressor Safe: Yes
- Quantity: 20 rounds per box
Field-Tested Performance
This ammunition is tested in popular, real-world firearms to ensure reliable performance in the conditions you'll actually encounter. Whether for hunting, sport shooting, or self-defense, Underwood's 10mm delivers the performance serious shooters expect.
