Someone correct me if I'm wrong--here's how I think about it...
Normally, your scope would be zeroed in (if bases and rings are machined and fitted true and level) close to the center of the range of your scope adjustment...so you can dial "up" for only about half the whole range of your scope, if needed, to compensate for your drops.
What the 20 MOA base does is tilt your scope. Now you have to re-adjust your scope "down" so you are lined up with your zero point. You "new" starting point for zero is now in the lower half of your scope adjustment "down" ~20 MOA, so you now have that 20MOA and the rest of the other half of the range of your scope adjustment to "dial up" for your drops.
Originally Posted by bowhunthard
Thanks so much. That's what I originally thought, but I thought about it so much I guess I over analyzed and ended up thinking the opposite lol.