Made by DrakeGmbH over on Gunnit, this awesome comparison shows the various 5.56 ball cartridges used by our military. From the M193, M855 as well as the M855A1 in 55 and 62gr. Now I just wish we can actually get our hands on some! 5.56 as well as .223 is as rare as a unicorn these days.
In case you missed it, here’s a cool cartridge comparison poster you can buy online with a few hundred various cartridges from rifles, shotguns and handguns.