[zeugma]

.45mm = < 1/2 mm. It would be almost half as wide as a fingernail is thick. LOL. Good luck trying to load that ammo in a clip. Now we should find a "handgun" to shoot it.

Yeah, but just think how many could could have stacked in a standard magazine!

"My handgun holds 5412 rounds!"

How the heck could you get it to cycle though? Maybe a tiny dollop of antimatter instead of powder?

[Still Thinking]

"My handgun holds 5412 rounds!"

Oh, the liberal emotion-bots aren't going to be happy! They have a hair trigger when it comes to hi-cap mags!