HEI

High explosive incendiary operational cartridge equivalent to M56A3.
Suitable for use in M39 and M61 cannons.

NORMATIVE REFERENCE MIL-C-46578D
PROJECTILE TYPE HIGH EXPLOSIVE INCENDIARY
PROJECTILE WEIGHT 100.5 g / 1551 gr
VELOCITY AT 7.5 m 1000 m/s / 3281 ft/s
ENERGY AT 7.5 m 50250 J
CASE BRASS
WATERTIGHTNESS YES
SERVICE TEMPERATURE 54°C to +21°C
-65°F to 125°F

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