I run the Farrell 20 MOA steel bae with the recoil lug and they are great and my gunsmith fell in love with them. He tightened down the front and checked the back and then the back and checked the front and told me alot of mounts need to be shimned but these were the best fitting mounts he had seen on a long action 700. The other member is right the 20 MOA base is taller than you would think and I went from a high mount to a medium on a 56 mm objective on a 35 mm tube which was surprising.