Cordite
Cordite is a family of smokeless propellants developed and produced in Britain since 1889 to replace black powder as a military firearm propellant. Cordite is made by combining two chemical explosives—nitrocellulose and nitroglycerine—with petroleum jelly. It is designed, in normal use, to produce a subsonic deflagration wave rather than the supersonic detonation wave produced by brisants, or high explosives. The hot gases produced by burning gunpowder or cordite generate sufficient pressure to propel a bullet or shell to its target, but not so quickly as to damage the gun barrel.
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