Cooey Carcano

[tiriaq]

The 7.62x39 rounds fit the chargers. A spacer bock may or may not be needed to feed. I used a Savage take-off .30-06 barrel. My reamer pilot fit the bore easily, so I am not concerned about it being a .30 caliber barrel. Fired M43 cartridge case is perfectly normal, but steel case hard extraction can be an issue. A Lee Enfield barrel also works.

I measured GO gauge projection from the 6.5x54 barrel, and reamed the 7.62 barrel until I achieved the same projection with the 7.62 GO gauge. Turned the barrel in to the gauge. It is tight i the threads, the little set screw is not needed.

The take-off barrel has these dimensions:
0.812" diameter; no shoulder.
Threads are 20tpi. About 1 1/16" of threads.