<blockquote>quote:</font><hr>Originally posted by Slapdragon:
It is actually the weight, in pounds, that an iron sphere of that diameter will be, so you should be able to plug in the formula for figuring the area of a sphere, and multiply the weight of iron per cube inch, and get the "pound" designation. This is approximate, because the iron cannonballs were not pure, and I believe the cannon balls used for the designation where actually hollow, when this system of measurement was first put into place, so your numbers may vary, but they will retain the relationship between each weapon.<hr></blockquote>
I think we should all be grateful that the war ended before some brilliant boffin decided to maintain the integrity of the British Empire and its culture by expressing gun calibre in stones or fractions thereof. This likely would have been the final straw that broke the back of the Anglo-American alliance.
BTW is it true that the Sherman's sloped glacis was actually designed to deflect small British motorcars whilst driving on the right side of the road in Cornwall?