Originally Posted by Bill Maylor
Which system is easier to use in the field.
The one that's easier to use in the field is the one you like the best and have practiced with the most. Both can work equally well, it's a matter of preference. What's most helpful is that the reticle and knobs match, be they Mil or MOA.
preference is for Mils for several reasons. I like the click value size of .1 Mil for what I do, right in between 1/4 and 1/2 MOA and being in decimal form it makes for a nice svelte dropcharts as everything is pretty much two simple digits (3.7 Mils instead of 12.75 or 12 3/4 or 12+3 MOA for example) until you get to crazy ranges:
Another thing is just how common Mildot scopes and spotters are vs. MOA--you'll be compatible with more people spotting for you when you can take corrections in Mils (not even counting military). It's pretty universal.
But like I said, that's just my preference. There's nothing keeping MOA combos from working just as well. Getting comfortable with a system and practicing with it is more important than which one it is.