US Cartridge, 20mm HE-T, Mk 4 Mod 1 - 28, Mk 7

 

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Description

The Mk 4 and Mk 7 rounds are identical except for the dimensions of the tracer cavity, which is slightly greater in diameter and length in the Mk 4 than in the Mk 7. This somewhat reduces the tracer filling of the Mk 7.

See Also

Nothing else to see.

Source(s)

Collaborative Ordnance Data Repository

OP 1664, Volume 1 - US Explosive Ordnance (1947)