I recently bought a 300 win mag TC Encore Pro Hunter. I put a Burris Black Diamond 4x16x50 with a 30mm tube on it. The scope is simply too far back on the gun. The weaver style base that I have on it is approximatly 4.75" long. It needs to be at least 5-6" long. Do you have any recommendations on how to fix this problem. I now have scope eye!