why don't people say mega meters

Showerthoughts@lemmy.world – 162 points – 4 months ago

How come people say 5,000 km and not 5 Mm?
why not just say millions of meters or Mega meters?

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Firearm's ammunition is a mixed bag because many military sizes are standardized with the rest of NATO. 5.56, 7.62, and 9 mm sure; but then you get a bunch measured in caliber .308, .45, .50.

And 7.62 is just .30 caliber rebranded

and the old gauge system for shotguns.

Now get ready for the 7mm-08

I've only recently gotten my foid card and am learning to shoot and that shit confuses me so much.