Just a suggestion for the future, buy your ring sets from Akerly and Chids. They listen to you, give you what you need, and if you're a little clumsy like me and occasionally break 2nd rings installing them, they'll next day air you one for peanuts even if it's a really weird one. No more rifling through catalogs looking for a package that has the ring combo you want to try, just pick up the phone and every variable imaginable is at your finger tips. Plus guys on the other end that are knowledgeable enough to help with odd bore sizes, uncommon back cuts and faces, materials, and other conditions that may change your radial tension, size, and shape needs.