Underwood 9mm Luger +P 90 grain Xtreme Defender ammunition features a solid copper, lead-free bullet and nickel-plated brass cases, engineered for dependable performance and precision. Each round is new production, non-corrosive, boxer primed, and reloadable. This ammunition delivers a muzzle velocity of 1,475 feet per second with 435 foot-pounds of energy. Lead-free 90 grain solid copper bullet, supersonic velocity Nickel-plated brass, reloadable, non-corrosive, boxer primed 1,475 fps muzzle velocity, 20 rounds per box Underwoods 9mm Luger +P rounds are manufactured to modern standards for consistent and reliable performance. Each box contains 20 rounds.