Well now, not a Mauser development, but certainly chambered in M-98's.
As it happens I have a late 1920's "Stogos" M-98 (12/28 proof date) in that chambering getting a new stock by Steve Bertram. Should be completed some time this coming Summer.
NOTE: Mine is NOT a magnum action as often claimed (possibly later ones were done on magnum actions), simply a standard length. The 401 grain bullets in the original factory ammo and reloads need to be very deeply seated.
- Mike