Description
This cartridge is used in 57mm recoilless rifles for target practice.
The cartridge consists of a perforated metal cartridge case, containing a plastic liner, which is crimped to a steel projectile. The cartridge case liner is loosely filled with propellant and the cartridge case is equipped with a percussion primer. The primer ignition tube extends through the length of the propelling charge. The projectile resembles the HE round M306A1 with the same shape and pre-engraved rotating band; however, instead of high explosive filler, the target practice round contains only a small black powder marking charge. The projectile is equipped with a PD fuze. This target practice round has the same ballistics as the HE round.
Hazardous Components
Filler - Inert material (6.46 oz, 0.18 kg), black powder (1.1 oz, 0.03 kg)
M10 propelling charge
See Also
Primer, Percussion, M60, M60A1
Source(s)
TM 43-0001-28, Artillery Ammunition (chg 11, 2003)
TM 9-1300-203, Artillery Ammunition (1967)
