The Underwood Ammo Xtreme Defense 45 ACP features advanced 135 grain solid monolithic projectiles designed for superior performance with 1240 FPS muzzle velocity and 461 ft lbs muzzle energy.Underwood Ammo Xtreme Defense 45 ACP ammunition135 grain solid monolithic projectile designNickel-plated brass casing for reliabilityHigh-performance specs: 1240 FPS muzzle velocity 461 ft lbs energy20 rounds per box packagingSKU: 843 UPC: 816874021139Engineered for consistent performance and reliability this premium ammunition is ideal for self-defense applications and demanding shooting scenarios where terminal performance matters most.