
These cartridges are used for training in marksmanship and are a ballistic match for the M304 HVAP-T cartridge.
The projectile has a hollow steel body with an integral bourrelet, a gilding metal rotating band and a skirted base fitted with a tracer, An aluminum windshield is threaded to the body just forward of the bourrelet.
No information about hazardous components.
TM 9-1300-203, Artillery Ammunition (1967)