Glenn, the Warne Premier is the same size as the Kimber and also most RF tipoff mounts, to fit a 3/8" (I believe) dovetail. Warne doesn't make the Premier any longer, they use the Weaver size now. Warne Premier rings are basically the same as Kimber rings except the Warnes have a built-in recoil lug on one side that requires a very unsightly slot in the rib. There are a few other differences but they're minor for the most part. When I use Warnes I always grind off the lug so they'll fit my unslotted ribs.
I haven't yet tried the cross-pin recoil shoulder idea but it's becoming more & more appealing to me and will be on my next job. It allows a completely clean & uniform top rib surface with no 'busyness' or other unsightliness except the merest bumps in the dovetails on the rib sides.
A 40mm objective will require the high rings on a long rib, the mediums will work with a 40mm on a short (6" or so) rib. Of course anything will work with a straight tube. I have a stash of NOS 1" and 30mm Kimber and Warne rings if you want to try them, and I could possibly be talked out of a set...
BTW it finally got cool enough down here so that I had to put on my long pants yesterday. Columbus Day has come and gone so now it's (finally) cool enough to do some shooting. My favorite time of year except for the snakes.
Regards, Joe
Last edited by J.D.Steele; 10/22/08 04:04 PM.