Description
This fixed cartridge is used for target practice in the Sgt York 40mm gun M247.
The projectile is filled with inert material and simulates the DIVAD combat round (HE M811). A rotating band encircles the projectile near the base where the projectile is assembled into the cartridge case. The projectile is painted blue with white markings. The cartridge case is brass and crimped to the projectile. The cartridge case contains approximately 515 grams of propellant. The base of the case forms an extractor rim and contains a percussion primer.
Functioning
When the firing pin of the weapon strikes the percussion primer, the black powder ignites which, in turn, ignites the propellant. This causes rapidly expanding gases, generated by the burning propellant, to propel the projectile toward the target. The inert projectile does not detonate on impact.
Hazardous Components
Filler - Inert material
Propellant - Single base, single perforated (515 g, 1.15 lb)
Primer - Mk 22
Physical Data
Length, overall - 21 in, 534 mm
See Also
Source(s)
TM 43-0001-28, Artillery Ammunition (chg 11, 2003)
