I know this question is asked a million times and there is ways to figure out exact height but i dont have the gun or scope or rings an my base yet. Its all in the mail. My question is what size nightforce rings do i need for a 5.5-22 56mm. its going on a remington 700 5r 300 win mag with a nightforce 20 moa base. I want there to be enough clearance for Butler creek flip open caps. Any help will b greatly appreciated!