RE: Zouave Anyone?
The guy I bought it fromgave me five minies he still had in an old cartridge pouch. They measured at .579 as far as I can tell. Minnie balls have to be the hardest bullet in the world to get an accurate micrometer reading on. They fit the bore just perfect - lightly kissing the lands.
I just checked Midway and Midsouth for what they have available.Both Speer and Hornady make .570 balls (278 grains) that would seem to need pretty thick patching. Hornady makes a .58 Great Plains @ 525 grains and TC makes a MAXI @ 555 grains. Bet those are THUMPERS on both ends of the gun.