I called Warne today to find out some options to mount a scope to my Sig Sauer SSG 3000, which has one of those machined 11mm rails on top. The person was extreemly helpful and knowledgeable. They make adapters for Sig specifically to slide onto the 11mm rail that will take the Weaver style scope rings. Unfortunatly I have to call Sig to get one and there closed now. But I wanted to give props to Warne for their excelent customer service.