Here is the text of the email from Williams:
What I can tell you is that for a 27" sight radius, adjustment moves at the rate of 127.32 MOA/inch. So if you're moving in 1/40" increments, each graduation (of .025") will yield a 3.183 MOA movement.
3.183 MOA/IN; 1/40" graduation=
- POI Change: 3.183" @ 100
The problem with this method of calculation is that each line is approximately .015" wide itself; which means that changing your adjustment the mere width of the line will move you 1.91" @ 100; which is why we say that those graduations are really for reference only.
