I have a Model 70 short action, sporter weight barrel in 308. I have a Burris Fullfield E1 3-9x40mm, 30mm tube I want to put on this rifle. I used the Leupold Mount Finder page on their website. In the scope selection I entered a Leupold VXR 3-9x40 30mm tube. I have one of those also, laying beside the Burris its very close to the same size. The Mount Finder menu tells me to go with the medium rings. I like a scope mounted low as possible. Looking at the scope and rifle I would think I could go with the low rings. Any one have a Winchester Model 70 set up like this? I hate to order the mediums if the lows would work.