Cute or what? 3mm Kolibri

[alanint]

I would wager that a Kolibri round is rarer than a pinfire round, as many manufacturers made pinfires.
The astonishing thing is that it is a centerfire rather than a rimfire, which would have been an obvious choice at the time. BTW, "Kolibri" means "Hummingbird".

Although the ballistics seem laughable, I'd hate to be shot in the eye with one.