You might consider calling Kirk at Shiloh Sharps in Big Timber, MT and talking to him about rebarreling your Sharps. Every part that they manufacture will interchange with an original Sharps. They can "antique" the barrel and it would match the rest of the rifle. You would still have the original barrel but you also would be shooting the rifle now! And you could have any caliber you want. They could duplicate the original barrels contour as well. Mori