Originally Posted By: SKB
Gunman,
How do you go about it?


I dont any more I retired and the tooling was sold off .
Basicaly the barels were cut off at 3&1/2" inches a centered mandrel was put in the chamber and held between centers , the back ends then clamped in a in a jig mounted on the cross slide by the lumps . The boring was done from the front/muzzel end with reamer drills and then finished to size with boring tool driven in the head stock . It was then faced off to length with a large diameter end mill .
This was a one station operation so that the facing off was true to the bores .This facing off was the key to good joints .