I was running a cz457 with area 419 20 moa scope base and a set of warren medium rings. I have since bought a bergara B14r, topped it with an anarchy outdoors 20 moa scope base and the same product line of warren rings but I ended up using the low version. On zeroing of my new rig I had to at 8 moss to my zero and was wondering if anyone had a reason why? Should I go with a 30 or 40 moa base to get it to go back down?