65BR,

I just "surveyed" my collection of centerfire rifles and aside from rings that came with various rifles, found at least 15 different kinds of scope mounts, including some from Burris, Griffin & Howe, Leupold, Precision Reflex, Seekins, Talley, Warne and Weaver.

First place in numbers is a tie between Old Ugly Weavers and Talley Lightweights, but my harder-kicking rifles tend to have steel Talleys or various tactical/Picatinny rings. However, I must comment that I've never had any problems with Old Ugly Weavers or Talley Lightweights, despite some hard use of both.

“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.”
John Steinbeck