Whitworth bullet maker?

[jmoore]

I think there were moulds made "recently" in England and perhaps Italy. As I'm sure he doesn't want to cut a couple of inches off the end of his barrel (Which works well, IF you don't want to paper patch your bullets...), a proper sized mould in the rifling form shape may also be complemented by a "standard" "round" (not rounfd ball, mind you) bullet- they were a common substitute in the War of Northern Massive Retaliation (US Civil War).

I forget the exact tricks to getting regular picket balls to work well, but they supposedly will shoot accurately, too. I had a book at home , but I forget where I live...