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What does HM stand for?

HM stands for Heavy Magnum (ammunition)

This definition appears very rarely and is found in the following Acronym Finder categories:

  • Military and Government

See other definitions of HM

Other Resources:
We have 48 other meanings of HM in our Acronym Attic

Samples in periodicals archive:

Hornady Heavy Magnum Turkey ammunition is loaded with 1 1/2 ozs.
Semi-autos offer much-needed recoil taming when shooting heavy magnum loads.
I have often wondered why some hunters carry a large, heavy magnum sixgun in addition to their rifle.