That's really interesting, but I wonder did he check round ball, bare, swaged onto rifling during firing? Just a technical point, but I've used round ball in a modern reload, and I use them of course in Cap-n-Ball revolvers, and I wonder if a .451 round ball, having so little surface area actually swaging onto the lands and grooves whether modern or cap -n-ball, would leave as much material as would a conical with more area swaged onto the lands and grooves when launched from a cap-and-ball revolver?
LD