Re: 20MOA bases too much?
Express. I hope this helps.
Your nightforce scope should have about 100 MOA of TOTAL adjustment of elevation so lets use that for this example.
Lets say that you mount your scope with standard rings and bases. Next lets say that you are lucky enough to shoot a group that is right on the bullseye at 100 yards with your elevation knob opticaly centered. That means you can dial your knob down 50 MOA (inches) or up 50 MOA (inches) at 100 yards.
Now you re mount your scope with 20 MOA bases OR rings. Next you adjust your elevation knob to shoot the bullseye at 100 yards again.
You will have 70 MOA of upward adjustment and 30 MOA down adjustment and you can still Zero at 100 yards.
Now lets say you re mount your scope with the night force 40 MOA base and re adjust for 0 at 100 yards.
You will have 90 MOA up and 10 MOA down and still be zeroed at 100 yards.
Also, as mentioned earlier, your sight picture will always look the same.
I was able to shoot to about 850 yards with regular rings and bases out of my .308 and leopold scope adjusted all the way up. Then I had gunsmith darryl holland make a one piece base/ring type of mount with what he thought was the appropriate taper.
I believe it is around 20MOA but I don't know for sure. I do know that with my elevation turned all the way up I can shoot the crosshairs at 1100 yards and still can adjust back to have a 100 yard zero (or less if I want).
GRAVITY. It's not just a good idea. It's the LAW!