I don't know much about mauser values but I do know you can't rechamber for 30-06. Your mauser has a .323 bore and the 06 needs a .308 bore. If you want a 06 you will need to rebarrel. If you don't mind loading your own ammo you may rechamber for the 8mm-06 this wildcat uses the .323 bullet and a 30-06 case.I have made a half dozen of these for myself and friends.It is a excelent round that will equal the 06 with bullets up to about 160 grain and better it with anything over 160. The loading dies are available from RCBS if your smith does not have a ream he can rent one from
www.reamerrentals.com or maybe I would sell you mine .