The Underwood Ammo Xtreme Defense 32 ACP features a 55-grain solid monolithic projectile designed for superior performance with 950 FPS muzzle velocity and 110 ft lbs muzzle energy.Underwood Ammo Xtreme Defense 32 ACP ammunition55-grain solid monolithic projectile for consistent performanceNickel-plated brass casing for reliable feeding and extraction950 FPS muzzle velocity with 110 ft lbs muzzle energy20 rounds per boxEngineered for self-defense applications this premium ammunition delivers exceptional terminal performance and reliability in 32 ACP firearms.