Dummy round

Not to be confused with Dumdum bullet.
Blue-painted Tartar missile Guided Missile Training Round on a Mk 13 naval launcher
Military rifle drill round with fluted, perforated, and tin-plated case to distinguish it from a live cartridge.

A dummy round or drill round is a round that is completely inert, i.e., contains no primer, propellant, or explosive charge (filling).[1] It is used to check weapon function, and for crew training.[2] Dummy ammunition is distinct from "practice" ammunition, which may contain smaller than normal amounts of propellant and/or explosive.[3] For example, the M69 practice hand grenade[4] 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 and a primer but no bullet or shot; a dummy does not produce an explosive sound like a blank does.

  1. ^ Brown, Edmund G. (2009). Handgun Safety Certificate. West Sacramento, California: California Department of Justice. p. 52.
  2. ^ M922/M922A1 40mm Dummy Rounds (fas.org)
  3. ^ M781 40mm Practice round (fas.org)
  4. ^ M69 practice hand grenade (fas.org)