Tungsten alloy sphere are also called tss shot which is used as the shot of shotgun. A shotgun is a firearm that is usually designed to be fired from the shoulder. The shot pellets from a shotgun spread upon leaving the barrel and the power of the burning charge is divided among the pellets, which means that the energy of any one ball of shot is fairly low. In a hunting context, tungsten alloy hunting shot makes shotguns useful primarily for hunting birds and other small games.