How consistent are the bores of the 50/70 rolling blocks? I know the bores of the sharps carbines are all over the place for various reasons. Without having a rifle yet is this one where the only way to have an idea is to slug it or would I be able to at least hedge my bet and likely use the Lee 450-515 bullet I already cast. I’d like to get into a rolling block but I’m not sure if it’s worth it for me if I’m walking into it knowing what I already do is very likely not going to work. The roller in question is claimed to be a trials rifle. So it’s that or a NY militia rifle.i wouldn’t be looking for pinnacle accuracy. Just something that a .515 bullet and 60gr of FF will be fine out to about 100 yards or so. Using the same ammunition for both rifles.