I'm shopping for a mold for my next build, which is a .62 cal Jaeger.
Barrel is a Rice barrel, square bottomed rifling and googling gives me a variety of sizes, from .595 to .610 size balls.
My only other experience is from my .54 cal Lymans GPR, where I happily use a .535 ball with 0.18 pillow ticking patch, so I don't have a whole lot of experience to form an opinion from.
Opinions, advice would be much appreciated.