Dummy round

A dummy round or drill round is a round of ammunition 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.

References

  1. ↑ M922/M922A1 40mm Dummy Rounds (fas.org)
  2. ↑ M781 40mm Practice round (fas.org)
  3. ↑ M69 practice hand grenade (fas.org)

See also