![FrankfordArsenalDrillRound](https://upload.wikimedia.org/wikipedia/commons/d/dc/FrankfordArsenalDrillRound.png)
A dummy round or drill round is a round that is completely inert, i.e., contains no
primer,
propellant
A propellant (or propellent) is a mass that is expelled or expanded in such a way as to create a thrust or other motive force in accordance with Newton's third law of motion, and "propel" a vehicle, projectile, or fluid payload. In vehicles, the ...
, or explosive charge. It is used to check weapon function, and for crew training. Dummy ammunition is distinct from "practice" ammunition, which may contain smaller than normal amounts of propellant and/or explosive. For example, the M69 practice
hand grenade
A grenade is an explosive weapon typically thrown by hand (also called hand grenade), but can also refer to a Shell (projectile), shell (explosive projectile) shot from the muzzle of a rifle (as a rifle grenade) or a grenade launcher. A modern ...
M69 practice hand grenade
(fas.org) 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
A propellant (or propellent) is a mass that is expelled or expanded in such a way as to create a thrust or other motive force in accordance with Newton's third law of motion, and "propel" a vehicle, projectile, or fluid payload. In vehicles, the ...
and a primer but no bullet
A bullet is a kinetic projectile, a component of firearm ammunition that is shot from a gun barrel. Bullets are made of a variety of materials, such as copper, lead, steel, polymer, rubber and even wax. Bullets are made in various shapes and ...
or shot; a dummy does not produce an explosive sound like a blank does.
See also
* Snap cap
A snap cap is a firearm accessory device shaped like a standard cartridge/ shotshell but contains no functional components, namely the primer, propellant (gunpowder) and projectile (bullet or slug). It serves the same purpose as a dummy roun ...
References
Ammunition
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