A very skilled reloading friend reached out to me knowing I cast boolits. His friend has an old flintlock to which he only has 4 roundball left and would like to see if I can cast some. I know of the flintlock mechanics but not much about calibers. I asked what size ball and what grain this thing shoots and the math seems to be fuzzy from what his caliper or micrometer gave him from a roundball his friend dropped off. The ball he currently shoots is measuring .541 with a grain weight of 237 grains. Some homework I've done proves that different thickness patches can be involved making me believe caliber/mold size can differ greatly. Would any of you wonderful folks know of any direction I should turn. Would really love to help another avid shooter out if possible. If this post belongs in a different thread, surely please place it accordingly. Thank you for any intel.
Brad