
The M188 is a Zone 8 charge designed to supplement the standard M1 and M2 charges and provide extended range for 8 inch howitzer M110A1.
The M188 Propelling Charge is a single increment, white bag charge, approximately 31 inches long and 8 inches in diameter, The charge contains approximately 38 pounds of high-energy M30A1 propellant in a cloth bag. A red igniter pad containing 1 ounce of black powder is sewn to the base of the charge. A central ignition core extends through the center of the charge for almost its entire length. This ignition core consists of a nitrocellulose paper tube, containing a bag of black powder, which is sewn to the base igniter. A liner consisting of a cloth side, impregnated with titanium dioxide and paraffin wax, and a lead side lines the forward end of the charge, Four tie straps sewed to the base of the charge run the length of the charge and are tied at the forward end of the charge. A flash reducer is inserted under the tie straps at the forward end of the charge. A cylindrical jacket is placed over the charge length and tightly laced. This lacing jacket serves to provide necessary rigidity and structural stability of the assembled charge.
No information about functioning.
No information about hazardous components.
TM 43-0001-28, Artillery Ammunition (chg 11, 2003)