Just amazing how we figured out how to kill people so well.
Wonder how they determined the Cal of the grape shot?
Looks like there were many diff cal.
Grape is based on bore diameter. What size do you need so that 3 balls arranged in a triangle will fill the bore? I believe that grape is always in stands of 9 balls, three layers of three. I'm sure that someone will correct me if I'm wrong.
And, yes, our ancestors were quite inventive. The types of shot and shell, the fuses for detonating them, teh method of engaging rifling were all amazing.
Added: Did you notice in the close up of the CS canister round that it looked liek they were using belted musket ball? Was it the Maynard that used those?