Description
This cartridge is used in 57mm recoilless Rifles M18A1 and M18 and is intended primarily for screening and spotting.
WP Cartridge M308A1 includes a perforated cartridge case containing a plastic liner and a percussion primer. The propelling charge is loosely loaded into the plastic liner. The cartridge case is crimped to the projectile just behind the pre-engraved rotating band. A steel adapter forms the front end of the projectile. The burster is press-fitted into the adapter, and the fuze is threaded into the adapter. The projectile is filled with white phosphorous.
Hazardous Components
Filler - WP (0.37 lb, 0.17 kg)
Propelling charge - M10
M308 has a M46 primer; M308A1 has a M60A1 primer
See Also
Primer, Percussion, M60, M60A1
Source(s)
TM 43-0001-28, Artillery Ammunition (chg 11, 2003)
TM 9-1300-203, Artillery Ammunition (1967)
