
The M231 propelling charge is the Modular Artillery Charge System (MACS) low-zone charge used with 155mm field artillery cannon systems. The charge has been optimized for use in the Crusader Field Artillery System but is compatible with all 155mm 39 caliber tube length systems in the US inventory. Zoning is accomplished through the addition of increments. No more than two M231 increments may be used in a single shot.
The M231 propelling charge is comprised of a green colored, coated, nitrocellulose based combustible case with black bands and black markings. Contained within the case is solid, granulated PAP-7993 propellant. A center core ignition system containing both black and ball powders ensures rapid, controlled ignition under all temperature and pressure regimes. The end igniter bags are sealed behind red seals. The charge is bi-directional, it can be loaded and initiated with either end forward. Two M231 increments are packaged within a green-colored extraction sleeve. Two extraction sleeves are contained within each green-colored PA161E1 ammunition can.
No information about functioning.
No information about hazardous components.
Nothing else to see.
TM 43-0001-28, Artillery Ammunition (chg 11, 2003)