Description
The projectile consists of a heat-treated, hardened steel body which has a softer steel AP cap sweated on its forward end. The AP cap in turn is threaded to receive a cast aluminum windshield or false ogive. The body has a cavity for the high explosive filler, and the base is threaded to receive a base detonating fuze if a filler is used, or a base plug with tracer composition if no filler is used.
The complete round consists of the projectile APC with 0.17 pound of Explosive D filler, and the Base Detonating Fuze M66 or M66A1.
Functioning
No information about functioning.
See Also
Source(s)
TM 9-1904, Ammunition Inspection Guide (1944)
