had a 10 mm barrel and a loose SFM action already converted to CF
borrowed a 10 mm reamer from a friend fitted the barrel and chambered it ,went to load up some test loads and on the bench was a few 41 mag brass so run them through the sizing die and looked pretty neat .
Removed the barrel and run reamer to 1.3 inch and cut a relief for the rim
did some test loads using QL fires and extracts as expected ,
finished barrel 18.6 and tool blacked rifle