I looked @ the pics of the bb's in photoshop and blew them up to 200% and measured the diameter of both the bb and the mint
the mints are about 15-20% smaller than a regular 6mm bb
Anyway, I'm going to bring a pack o these for shooting zombies!
If you see one, draw your pistol, lock back the slide, drop the mag, breech-load a single shot, close the slide, re-insert mag and fire!
perfect transition to zombie ammo!