I have been using Weaver Rings for years for non-precision applications. Recently purchased a set of Medium Height Matt Black rings with the dual over the top straps and 4 Allen head screws per ring. They would not fit on either or my current Weaver Style Bases that I had intended them for. Went back to the dealer, tried two more sets with the same result. They would not tighten down enough to be snug. We then took a set of the older style that have the one large top strap that slides on the ring and is then tightened down with two sloted screws on the other side. They mounted and tightened just fine. Has anyone experienced this?

Thanks Bob