What is the maximum and optimum dia. folks with experience are using on their cast 45-70? I'm casting for 355gr GC and 405gr no GC for two Browning 1886 rifles, a SRC and a full size rifle, and a Marlin 1895 LTD V. Here's my question. My mold throws a boolit .462 - .463 and I'm wondering what to size these to. Throat slugs are about .458 + - but I've read that a larger dia. will give better accuracy.
If I size these to .461 am I looking for trouble? Given the measurements I've quoted do folks thing accuracy/performance would be better or worse with 3 1000ths oversize?
I did look through with the search function but didn't really see anything specific to being 3 1000ths oversize. I know shooting will give me the final answer but I need to order a sizing die so I'd like to order only once.
Thanks,
Wayne