Pete, I say we do it like on my place but we allow round balls and lead conicals.
Mine is set for STRICTLY round balls, but lets be more forgiving on here.
Part of my rules on my forum for traditional muzzleloading section
"The rules are simple, please keep the modern stuff out!
We understand that your "traditional" rifle may have come with a plastic stock, Fiber Optic Sights, Plastic ramrods, and that is fine. We are not that snobby!"
I think on here, if its pellets in a flintlock and lead conical or ball, thats ok. Just keep the sabot stuff out and we should get along fine.
Pellet shooters in flintlocks dont pop up very much anyway so its not really worth discussing lol.