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kkfx
7 days ago
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Common mistakes when using the metric system
People do not know much about old cartridge powder measures though :D
ndsipa_pomu
7 days ago
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"Grains" are still used for measuring out powder/chemicals (also arrows). If I saw "gr", I'd interpret that as grains rather than grammes as "g" is definitely grammes, so the extra "r" must signify something.
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antonkochubey
4 days ago
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Air rifle bullets are typically specified in grains, for example
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