I got the gun at the Gander on the north side of Indy.

The OD of the barrel ran true in the steady rest, so the crown I cut is square to and concentric with the OD. I stuck a gage pin in the bore after indicating in the OD and saw the runout there. The bore isn't concentric with the OD from the factory. I put a flat, recessed crown on it to minimize the error.