Re: Austen & Halleck
Like Pops said, that fast a twist is probably more suited to conicals, and is probably meant for sabots.
Most barrels that are a compromise for conicals and roundballs are like 1/48" or so, most barrels for roundballs go as slow as 1/66" or more.
My Hopkins Allen .44 flintlock is about 1/66, and shoots roundballs very well, but the few times I tried a .440 conical that fit the .437 bore, it was not accurate at all, but may have had more to do with ramming it home, even though with a clean bore I can (and hunt with) .440 balls with a .010 patch for at least two shots before I have to clean or switch to .435 balls. I have never found any actual .437 or .435 conicals to do a good test though.
My son's CVA .50 carbine is 1/48, and is really accurate with conicals, specifically the Buffalo Ballet, but is only so-so with roundballs. I could use roundballs in a pinch with it though.
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