This is 44 Special Winchester Super X 246 grain Lead Round Nose Ammo. This ammo is specifically designed to be safe to fire in all 44 special revolvers and Rifles. It also meets the criteria of all cowboy action contest rules. It has a muzzle velocity of 755 FPS. This ammo is brass cased, boxer primed and 100% non-corrosive. This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases.