One factor Thomas didn't mention is that while the shot charge was the same, the powder charge was not. Assuming the faster burning powder charge weighed less than the slower, that might have also had some impact. It's the total weight of the ejecta rather than just the shot charge that has to be factored into the formula. Obviously, shot makes up most of the weight, but it's not the only component contained in the hull.

Last edited by L. Brown; 04/21/23 11:47 AM.