I installed a set of Seekins Precision 30mm rings with my SWFA scope. One side of the rings does not fully come together like by a mm or so. Is this normal? Shot it for the first time yesterday with no obvious problems. I would imagine that both side of the rings would mesh. All 8 screws are hand tightened with the wrench from the box. i don't think I can tighten it anymore without damage. Thoughts? Suggestions?