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NSN: 1310-01-211-8073
Nomenclature: 40mm M781, 40mm Practice Cartridge Low Velocity
Appearance: Plastic blue nose cone with Plastic white to tan base. Projectile
weight is from a zinc part. Propellant charge is contained within 38 S&W case
inserted into base case (M212).
Function: Upon impact of the 40mm M781 a signal (cloud) is seen from yellow-orange powder dye
SHIPPING
Hazard Class: 1.4 C
UN Serial Number: 0339
Proper Shipping name: Cartridges for Weapons, Inert Projectile
Configuration: 25 40mm M781 rounds per cardboard box, 4 cardboard boxes per wire bound
box, (typically) 20 wire bound boxes per pallet
Performance
MAST Requirement for M781
Velocity: 240-250 fps 240-250 fps Avg. at Ambient
Std Dev: 1.8- 2.8 4.5 max (3 –4 typical)
Total Weight: 206-209 grams 201-211 grams
Projectile Weight: 172-173 grams 167-175 grams
Zinc Body: Single cavity Cast
This round is a Training round to be used in the M203 or M79 40mm Launchers. It
is designed to train the solider to fire the M433 Low Velocity HEDP round. The
MAST 40mm M781 product has the best Standard Deviation in the industry.
MAST's M781 in use at Ft. Leonard Wood, MO by PFC Daniels.
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