My easiest scope to get behind in an older Burris Fullfied 3x9, made in the USA. Big picture and foregiving to head position. I liked the old Fullfields a lot. Second easiest is a Weaver 2.5X on a Savage 99 mounted low. Almost like shootin irons. My worst scope is an Bausch and Lomb 3200 2x7, your head has to be absolutely perfect to get a full view.