Not sure I know how to answer your question because I'm a noob to larger caliber/long range. I can however tell you what i have: a savage 10pc with a weaver 20moa base .5" rings and leupold 8.5-25x50. This set up gives me .505" clearance on my barrel. I have not shot this past 100 yds and the rings are just something I already had so there wasn't any thought put into height needed to achieve a shot at long distances. Sorry I'm not more helpful