Having fun trying to put together my first build. Thanks to Mr and Mrs Briggs, I have a model 12 action for .308 with recoil lug, wrenches and varmit contour 26" barrell. I also have a set of go, no go gauges for the build. I got in my XLR Evolution folding chassis!(It rocks!) I am wanting to put a Vortex Viper PST 6-24x50 on it and am wondering the best rings to go on an EGW 20moa base to give the clearance needed.I would like to be able to use caps to cover the lenses. Any suggestions and advise greatly appreciated. This is by far my favorite site to read and am forming an addiction to all things Savage.