bbell,
Trying to mil range & calculate distance to a constantly moving coyote under field conditions is really stacking the odds against you as a shooter.
I like the idea & challenge of reticle ranging alot but the system is simply is not practical or conducive to killing coyotes. I say this based on kicking the idea around myself.
At the very least, a FFP optic should be employed so that you could range with your reticle at any power. And ideally, your turrets should match you reticle subtension units...MOA/MOA or mil/mil to keep the math easy.
Also, the constant variable of the yote's actual size could skew your numbers.
Lastly, you'd still need to do the math in your head quickly & accurately...
See where I'm going with this???
MUCH more effective would be to use a laser range finder to measure landmarks BEFORE you start calling & remember those distances. If a yote hangs up out there a ways, you can "swag" the distance based on your known ranged landmarks and let one go.
If you are sniping them at distance without calling, then laser range , dial or holdover & knock'em down...
Personally, I sight in @ 200yds and know what my load is doing closer in & beyond to keep the shooting part as efficient as possible...