Description
This cartridge is intended for target practice.
The projectile consists of a steel body with a gilding metal rotating band and an aluminum windshield. A tracer is threaded into the base of the projectile. The brass or steel cartridge case is loaded with a triple-base propellant and fitted with a percussion primer. A distinguishing characteristic of these rounds is the cartridge case-over-band construction. The specially designed rotating band has a crimping groove which permits the cartridge case to be assembled over the rotating band and rigidly crimped to it.
Color:
Old - Blue or black with white markings.
New - Blue with white markings.
Functioning
When the weapon is fired, the primer flashes igniting the propellant and tracer. Gases created by the burning propellant force the projectile from the gun barrel. The tracer burns with a visible trace for approximately three seconds of projectile flight. Upon impact, there is little penetration of the target because the round lacks armor-piercing capability.
Hazardous Components
Cartridge case - M340A1: M88B1: M340: M88
Propelling charge - M30 (5.6 lb, 2.55 kg)
Primer - M58 percussion
Tracer - M5A2B1 (M340); M13 (M340A1)
Physical Data
Length, overall - 32.89 in, 835.4 mm
See Also
Nothing else to see.
Source(s)
TM 9-1300-203, Artillery Ammunition (1967)
