Bullets are a weird, dumb one. Yes, kind of. But also: .308, .303, .30-06, .50 BMG .30-30, .45-70, .38, .32, .44, .45, .50AE. Then nonsensically basically all “30 calibre” are the same diameter, which is exactly not quite .3 of an inch. Most of those are calibrated by the metric system (as many imperial measurements are today), but the terminology exists in the imperial system.
And then there’s fuckin gauges for shotguns smh.
Except .410 for some reason. I guess 67 gauge is starting to sound a bit crazy.
But yeah I know. I just think it’s silly.