I'm new here but I've been absorbing all of this info like crazy. I know (at least I think) in this thread there was discussion of figuring out what size sockets were to use as shapers or mandrels for making rings. Well I found this link:
http://www.google.com/url?sa=t&ct=re...rj4GdjJHey23Sg
That talks all about ring sizing that might help. Even if you're using a ring mandrel or some other "found" tool to shape your rings.
Enjoy!
Tami
Storyteller Art
www.storyteller-art.com