Hello, I just bought a new rifle scope (NF ATACR 7-35) for my ELR 338Lm rig. With this set up I am going with a 20 moa rail and a Spurh mount with some cant. The question I have is how much moa I should leave for zeroing. I am planning to add 20 moa with the Spurh mount to leave 10 moa of travel for zeroing but just want to hear what everyone else thinks.