I've used the warne vertical rings extensively over the last several years (maybe a decade?) on a variety of scope brands and calibers with excellent results. I've never had a negative experience with them. No scope damage, no slipping, no scope related accuracy issues. Scope brands have included Leupold, Bushnell, Sig, Vortex, and Burris, and maybe one or two others that don't immediately come to mind. Just my personal experience.