Hello, new to the forum. I have a new to me Savage Model 12 LRPV in 204 Ruger Right hand dual port, and would like to know if someone could advise me on a model number for a one piece Leupold Std Mount, and what size rings would you suggest if I mount a Vx-3 6-20-50mm scope on it. Sorry for the long thread. Thanks, Jeff