Can someone tell me what the numbers are for on the back of the range ruler (above the musket range)?
I've read the rule book that came with my core set and can't seem to find it in there.
It is used for Measuring. If you need to determine closest ship, use this side of the ruler. This comes into play with the Optional Rule Forced Aim (p. 36) - where you have to target the closest ship. I don't recall it being used for anything else at this time.