Well, I have the Husqvarna Model 51 in hand. I need to have a dent raised in the right barrel, and as the muzzle of the right barrel is damaged, I feel better about have the barrels cut to 26 inches. The gun is relatively light, so I believe I will start with round balls and black powder. Need to find or fabricate a very simple shallow-vee rear sight to go with the front bead.