I would not deliberately design a scope mount system that bridges the ejection port of a bolt action rifle. Two piece bases will leave the whole port exposed to jettison the shells witout any possibility of deflection or screwing up the cycling of the rounds.
The next very important marksmanship issue is having your face planted tight to the stock and still have the ability to see through the scope perfectly. You will be amazed at the additional recoil control when your rifle stock is planted tight into your cheek. This usually requires a maximum 40mm objective to accomplish.
There are significant strength benefits as well to a scope mounted as close as possible to the action. The less extended distance the lower the flex to the system and the stiffer everything remains. It's a very awkward situation to have to lift up your face to see through the crosshairs. When you are trained to shoot properly one of the first things that is done is to close your eyes tightly, shoulder your rifle settle in for what would be the shot and then open your eyes and see just how close your alignment with scope height and eye relief is. With this test you start making adjustment to the system.
Unless you're using the lowest rings possible you won't likely get this to work perfectly. Although a few of the guys with giant heads managed it fine with higher then typical rings!