Not so great for my purposes...
Well, I pretty much use Warne rings exclusively; it goes without saying that I'm normally more than satisfied with their products. I bought these rings to use with the supplied rail for a Ruger 10-22. The attachment "legs" of these rings are an odd size. They are far too small to fit a Weaver/picatinny rail. On the 10-22, there's a second smaller rail that they did fit well enough to use the scope on the gun, but they were still too small to attach properly; they tilted the scope, and I don't believe the scope was centered to the bore line. Yes, I was able to use the scope, but I never felt right about it and ended up switching to some Leupold rings that fit the Weaver rail properly. Perhaps these were designed to fit another size of rail that I'm not familiar with? Even with a differently sized rail width, I'd still question whether or not the scope was centered to the bore line. Other than all of that, the materials and craftsmanship were typical of Warne's superior quality. I still intend to turn to Warne as my first choice for mounts; unfortunately, these rings leave me wondering if I missed a memo somewhere???