US Cartridge, 20mm HPT, M54A1, M54E2

 

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Description

The cartridge is used for proof testing of 20mm weapons and barrels during manufacture and repair.

The cartridge is a solid steel projectile, under cut behind the ogive to control projectile weight, for developing high chamber pressure. The cartridge is identified by a stannic-stained (silvered) cartridge case.

See Also

Nothing else to see.

Source(s)

Collaborative Ordnance Data Repository

TM 43-0001-27, Small Caliber Ammunition (chg 7, 2004)