OK, so now I know why you need to range find, But I still don't know why you want to convert MOA to MIL?
The problem as I see it from this side of the Puter is,
You have MOA in your scope.
You want to convert to Mils.
Estimate range in MILS.
use known range for drop.
convert known range to MOA hold.
pull trigger and knock over target.
Win match !!
Moa and Mils are both units of measure.
Its all most like feet and inches (Same thing but diferent)
or yards and meters you get the picture. if you know how big a yard is you tend to use yards, if you grew up using meters then you would like meters better.
For good ranging you need some smaller graduations than 3MOA, you can mentally divide the 3MOA into smaller sections but how good is subjective.
the reticle shown in this post would break it up into 1/4 MOA http://longrangehunting.com/ubbthreads/s...=true#Post85130
I just find MOA to work better and faster for me.
for down and dirty use 1" for 100 yrds this will be off by about 5%
Are you trying to use a MIL card for range?
any who good luck at your match this spring.