Vic. I'll probably start with BP and then decide whether to try the 4198. I can't find any cases at Buffalo arms and will need to turn or form a couple of cases.
Mike. Yes the combination gun did come with 9.5X47r dies.
I found the picture of the punch and die but can't visualize the forming process. Is the process described somewhere ? My main interest is in machining and I have little experience in reloading. Luckily, I have a friend who is a reloader, and can help in assembling the cartridges.
The drilling wouldn't close on the 9.5X47r cartridges as I suspect that they are head spaced on the shoulder (45-70 rim in unaltered at .070"). Could I simply pull the 9.5 bullets and push the shoulder back until they will chamber in the 10.5 and then fire form them ?
Otto