Dummy round

Blue-painted Tartar missile Guided Missile Training Round on a Mk 13 naval launcher
Not to be confused with Dumdum.

A dummy round or drill round is a round that is completely inert, i.e., contains no primer, propellant, or explosive charge. It is used to check weapon function, and for crew training.[1] Dummy ammunition is distinct from "practice" ammunition, which may contain smaller than normal amounts of propellant and/or explosive.[2] For example, the M69 practice hand grenade[3] emits a loud pop and a puff of white smoke.

A dummy is not to be confused with a blank, a cartridge for a firearm that contains propellant but no bullet or shot: a dummy does not produce an explosive sound like a blank does.

See also

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