+1Hi everyone, this is my first post here ! I am going to purchase a .308W SSG-69 PII rifle, yet in my nation no one sells STEYR scope rings. Taking a gander at the collector, I think the dovetail is very like the CZ-550(19mm CZ versus 18mm Steyr). Obviously, the CZ rings have a side securing tab in the back mount that ought to be ground off, so as to slide openly on the SGS dovetail. Has anyone attempted CZ mounts ? With respect to discretionary picatinny rail, does it require boring the head of the collector ? I will welcome any light on this issue.