I'm having a custom varmint rifle built in 6br. Need a recommendation on what rings to use. The rifle has Rem 700 SA action with Krieger heavy profile varmint barrel. Scope base is a Weaver picatinny rail w/ 20 MOA added. Scope is Leupold VX-3 8.5x25x50. Any one done one similar? I want the scope right down as close to the barrel as I can get it with minimal clearance. Looking for recommendation on brand and height of rings. I have a set of Leupold PRW "high" bases but not sure I want to use them here. Rifle recoil isn't an issue obviously. Thanks for advice in advance.