Underwood Ammo 9mm +P ammunition featuring 68 grain solid monolithic projectiles delivers exceptional performance with 1800 FPS muzzle velocity and 489 ft-lbs muzzle energy.Underwood Ammo 9mm +P 68 Grain Solid MonolithicSolid monolithic projectile design for superior penetrationHigh-velocity performance: 1800 FPS muzzle velocity489 ft-lbs muzzle energy for maximum stopping powerPremium nickel-plated brass casings20 rounds per boxIdeal for personal defense law enforcement and hunting applications where deep penetration and consistent performance are critical.