I have always used Warne Premier bases and rings on my rifles, but it seems the new owners of Warne decided that they are too costly to produce and dropped them from the line.
I have several pair of rings left but cannot get bases for the Encore for these.
I have looked at everything else I can find and the Leupold looks like the best out there right now.
I used a set of the Leupold QRs when they first came out on a couple of rifles and they worked great. I just liked the "old" Warnes better.