Hello Guys, I would like to put a Leupold 2x-7x rimfire scope on my 1982 vintage BL-22. Based on another thread here, I purchased a set of Warne rimfire rings (I prefer Warne for Weaver-type applications). They seen to barely hold the groove on receiver, I believe due to the top of the receiver being slightly rounded and the rings being square on the bottom. Does anyone have a recommendation for rings that have worked well in this application?