PPU's Subsonic Line ammunition is manufactured to strict quality production standards and will exceed all expectations. It has been in use by military, law enforcement, and training because of its lower noise and lower recoil benefits. Series Target Caliber 9mm Luger Application Target Shooting Bullet Type Full Metal Jacket Bullet Weight 158 gr Muzzle Energy 317 ft lbs Boxes Per Case 20 Rounds Per Box 50 Casing Material Brass Muzzle Velocity 950 fps Unit Of Measure box