anyone having any drawings ??
Dan I can't draw for s__t but I can describe these pretty closely as far as outside is concerned.
Barrel is right-circular cylinder, hemispherical at breech end. A steel bar the proper size and length for the trunnions is welded to the center of the hemisphere. I'm not sure whether the hemisphere is machined out for the bar or not, it probably is to some extent. As far as I know these are made from only two pieces of steel, the barrel bar and the trunnion bar. Bore of a US or CS 24 pdr. is 5.82 inches. I think these are also made in 12 pounder size. I don't know what the chamber shape or dimension is. This pattern is copied from one or two surviving CS (are you ready for this?) CAST IRON originals. The Confederate States did not have steel to use, nor even bronze at that time, so they used what they had. One of the originals is (or was) on a monument at Amelia Courthouse, Virginia, and is shown in various books on CW artillery.