priming charge

Related to priming charge: priming coat

priming charge

An initial charge which transmits the detonation wave to the whole of the charge.
Dictionary of Military and Associated Terms. US Department of Defense 2005.
Mentioned in ?
References in periodicals archive ?
The wheellock, flintlock, percussion and self-contained metallic cartridge handguns, both single-shot, revolver or semi-automatic are discharged by pulling the trigger which is linked to a mechanical mechanism releasing a striker device which by friction or impact ignites a priming charge (either loose powder, percussion cap or modern primer).
A second point comes to mind, your priming charge or cap should be able to ignite the smokeless powder easily.
An explosive priming charge, typically lead azide, is pressed into the detonator under the delay element.
Another favorite is a duplex load consisting of 7.0 grains of IMR 4759 as a priming charge plus 52.0 grains of Swiss 1 1/2 for 1,318 fps.
With a clack flint strikes frizzen, whoosh the priming charge leaps to life and almost immediately the gun responds with a throaty boom, filling the air with pungent white smoke.
Flintlocks can digest Triple Seven, but Hodgdon recommends delivering five grains volume of FFFFg black powder down bore prior to introducing the main charge of Triple Seven, which must be reduced by five grains to compensate for the black powder priming charge. As always, there is to be no air space between the powder and the projectile or shot charge in the bore.
Nitroglycerine-based priming charges and two detonators are placed in first, followed by 125 kilos of explosive.