Boyd,
My 'smith bought one last year to do my 7RUM. I don't think he'll be using it in the next few weeks, give him a call:
Geoffery Corn
Match Armorers Shop
Oakland City, IN
(812)749-6416
The reamer needs to have the neck diameter trimmed a little thinner - it left too much play with a finished round. We were just talking about fine-tuning recently. It does give VERY straight concentric brass once fired. To my knowledge, mine's the only chamber he's done with it so far, so you'll get a cherry if he'll part with it....