Weaver 20 moa base. Really 20 MOA?

[thomae]

KRP is spot on.

Here's how to derive his answer:
reference: http://www.mathsisfun.com/sine-cosine-tangent.html

the tangent of an angle is = length of the opposite side / length of the adjacent side.



Since we are discussing a slope (angle) of 20 minutes of angle, and there are 60 minutes in a degree, we know that this angle equals .33333^o

So: Tan (.33333^o)=opposite/1 inch
Using a calculator we find that Tan (.33333^o)=0.0058178

So: for every 1 inch of length, a 20 minute of angle slope will rise (or fall) .005818 inches.

I love math in real life!!