I've acquired an itch for an 11mm Mauser of one sort or another. What 'waves me off' is the case forming. I thought I saw a drawing of the Mauser A-base (hope this is the correct term) here but my search efforts are not paying off. Any help would be appreciated.

There are a number of sources on the 'net which talk of using .45-90 as a parent case but it is still unclear to me. Any insight in case forming will also be greatly appreciated.

Thanks!
Hoot