Underwood 357 Sig 124gr XTP Hollow Point Ammo
Underwood 357 Sig ammunition featuring Hornady XTP hollow points in nickel-plated brass with flash-suppressed powder for controlled expansion and low-light performance.
Premium 357 Sig Defensive Ammunition
Underwood's 357 Sig 124-grain XTP ammunition represents a thoughtful approach to personal defense. The cartridge pairs proven Hornady eXtreme Terminal Performance bullets with carefully formulated propellant to deliver reliable, consistent performance when it matters most.
Bullet Design & Performance
Hornady XTP Bullets are engineered for three critical objectives:
- Deep, controlled penetration through intermediate barriers
- Consistent, predictable expansion for stopping effectiveness
- Exceptional accuracy from shot to shot
The XTP design has proven itself across decades of real-world use, making it a trusted choice for those who depend on their ammunition.
Case Construction
Nickel-plated brass casings offer distinct advantages over conventional brass:
- Enhanced feeding reliability across all firearm actions
- Superior corrosion resistance during storage and handling
- Improved appearance that resists tarnishing from leather, moisture, and contact with other metals
- Easier cleanup for reloaders
Low-Light Performance
Underwood employs flash-suppressed powder formulation to preserve your vision in low-light defensive situations. This is not theoretical—it's a practical consideration for real-world scenarios.
Field-Tested Reliability
Every round is tested in actual firearms that customers own and carry. This commitment to real-world testing ensures the ammunition performs as intended when deployed.
