PPU's Handgun ammunition is brass-cased, non-corrosive boxer primed and features improved bullet designs which result in greater energy performance, bullet expansion, and reliability. Series Defense Caliber 9mm Luger Application Home Defense Bullet Type Full Metal Jacket Bullet Weight 124 gr Muzzle Energy 345 ft lbs Boxes Per Case 20 Rounds Per Box 50 Casing Material Brass Muzzle Velocity 1120 fps Unit Of Measure box