http://forums.nitroexpress.com/showflat.php?Cat=0&Number=207561&an=0&page=1#Post207561

its possible to made 6,5x57R barrels out of this 6,5x55 swedish. have a Vergueiro sporter in the make in 6,5x57.
the barrel was a 6,5x55 before but you have to cut 20-30mm from the chamber end.