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The bolt cams on the hammers of my 1980's vintage Armi San Marco 1860 Colt revolver replicas appear to be "removable". Not integral with the cast hammer. The cams appear to be relatively soft. Wear is even, not threatening bolt function, currently. I want to replace the cams at some point...

I measured cylinder chambers of 2nd Gen Colt 2nd Dragoon. Used a cheap hole gauge and a caliper. Oval chambers: 0.442" X 0.448". Each chamber, axis measured on a line running from center of chamber to center of arbor hole, 0.442". Measured perpendicular to line above, 0.448". Does it make...

I have an early Bulldog, and the face of the cylinder rubs against the rear of the barrel when closing the action. Wobble in the cylinder and a tendency to push forward under spring tension moves the cylinder forward. There is now a "bevel" worn into the barrel face. The leading outside edge...