Ah, Dave - you've done a splendid job on that old carriage piece. Modern cannon are not very "picturesque", but they are very effective. On the carrier (Intrepid), we had a 5" 38 cal right outboard of my work space - and I learned every position on that except gun captain. It is very accurate when firing, which always amazed me. Ship moving forward at about 20+ mph, rolling and pitching, yet able to hit a towed sled with no problem! Wish we were ab;e to do that with our muzzle loaders!
PS - never mind the jets taking off and landing, or the AD's, or banging/screeching from the arresting gear engines - I believe my hearing loss is from that 5" and it's penetrating bark.