It is possible to sleeve a single barrel on a double, my uncle has a SKB 100 with the left barrel sleeved. This would be possible on a lathe with the proper tooling and set up and the ribs removed. A special cutter may need to be made. I would think a set up such as is commonly used for opening chokes(different cutter of course) to square cut off tube. As for opening the old chamber, a reamer will work fine if you take light cutts, adjustable reamers work great for this. Good luck,
Steve

Firearms imports, consignments


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