By 1914, this cordite had been replaced by Cordite MD. Prior to the invention of Cordite, rifles used gunpowder (black powder) as a propellant. The shell reached "Hood"s rear ammunition magazine and detonated of cordite propellant. Four of these six were involved in cordite or firearm-propellant manufacture. It is also used as a stabiliser in the manufacture of the propellant Cordite. Unlike "Cordite", "Rifleite" was a flake powder, and contained no nitroglycerine. Acetone was used in the important wartime task of casting cordite. It was produced at HM Factory, Gretna; and the Royal Navy Cordite Factory, Holton Heath. Panjandrum was now equipped with over seventy cordite rockets and a stabilising third wheel. This cartridge was originally loaded with of cordite and bullet at for of kinetic energy. It was to be propelled by sets of cordite rockets attached to each wheel. It was powered by a cordite charge. It has since become known as "Cordite Mk I". It entered British service in 1891 as Cordite Mark 1. The term "cordite" generally disappeared from official publications between the wars.