Almost all of my rifles have 100 yard zero, just simpler for me and less shit to think about, but on my 375 Cheytac I have the NF 8x32x56, which is great for magnification (when mirage isn't bad), but it doesn't have a lot of internal adjustment so I run 40 MOA Barrett rings on a 20 MOA Stiller base which gives me roughly 1150 yard zero (plus or minus .5 MOA depending on conditions). It works out well because it's right around 20 MOA high at 100 and if I lower my magnification to double my sub tensions I have enough "hold unders" on the NP-R1 reticle to shoot anything between 100-1150 and I don't have to touch elevation knob until I get beyond 1150, and since that rifle does most of its work at distance it seems to be a very nice arrangement used in conjunction with Coldbore program on Trimble Nomad.