I have a Sharps Borchardt. I believe the caliber to be 45/70 but am not certain as I can find no caliber markings on the barrel. I have looked it up in the books but cannot find any that match this configuration. It has a 32.2" barrel with a half stock and one barrel band. It seems to have some type of ladder or military rear sight and the front sight is a blade. Has two triggers but one just seems to be a safety blocking the other. Does this specific gun have some model like target or is it just a standard Borchardt. The serial is 66XX.