The Tul Ammo Standards Large Rifle Primers is a chemical tool that is responsible for putting the propellant combustion which can push the chemical out of the gun. Previously this tool ammo primers were the same as the chemical loaded to the main propellant, but it was stored into an external flash. The external powder was also attached to a small opening to the centre of the gun barrel. The gunpowder will not burn at that moment, but it will get wet, which become difficult to fire these weapons during the rainy season. These primers are specially designed from the main propellant just to ignite better. It can be differentiated into two types,