Personally I detest the rings as they have a nasty habit of the windage screws loosening up and your rifle loosing the ability to group at the most inopertune time. If you're going to use the dovetail style of rings/bases, go dual dovetail.
++1. I had the windage bases break twice on me when shooting a 300 wsm. Both times the windage screws were tightened up and a few months later I noticed my groups opening up latterally. Both times, as it turned out, the screw heads sheared off. I'm glad this didn't happen on a hunting trip. Now it's talleys for me from here on out.
