Underwood Ammo XTP rounds deliver power and accuracy through Hornady eXtreme Terminal Performance bullets, engineered for deep terminal penetration, controlled expansion, and consistent accuracy. The combination of Hornady’s XTP bullets with Underwood’s formulated design creates a lethal round for 45 Long Colt in 300 grain.
These rounds feature nickel-plated brass casings that offer multiple advantages over standard brass. The nickel plating improves feeding across all firearm actions, provides enhanced corrosion resistance, resists tarnishing during storage or contact with leather and moisture, and simplifies cleanup during the reloading process.
Underwood loads this ammunition with flash suppressed powder to preserve vision in low-light shooting situations. Each round is field tested using popular firearms that customers actually own, evaluated under real-world conditions.
