I am a new member to the Forum and was wondering if anyone out there can please help me with information, blue prints or drawings on how Mauser ( or any other maker )achieved there takedown rifle. I have looked on this site and found a re finished Mauser ( an original takedown ) that had an interuped thread for the barrel to allow for the takedown but it was the actual "How to dimensions" that I am trying to find out. A gentleman in Victoria, Australia, Mr Jack Millar had made rifles using this principle but is now either sick or retired and no-one can give me any directions as to how to find him or if this information is available from another gunsmith.