Today I made a fixture to drill out the drum. I took a 36" mild steel rod and drilled and tapped the end for 8x32. I had some drills and counter sinks threaded for that size. I made a copper bushing .445 outside and 3/16" inside that kept the drill centered on the drum. As soon as it dropped through the one side I pulled that one and put on a counter sink and took it through the side towards the muzzle. I had the barrel 1/4 full of oil when I started. As soon as I dropped through the one side of the drum the oil started coming out of the drum. Hole done now. I was not drilled.
The rod was wrapped with tape with a breech bushing and a muzzle bushing.
It worked!!
Thanks for all the help guys, without it, I may not have tried it.
The picture cinched it,
David