There is another aspect to the MIL vs. MOA issue....
(1) I get my required amount of turret adjustment or holdoff from a
dope chart or from a
mobile ballistic calculator.
And after consulting either I need to
committed the elevation and windage numbers to short-term memory so I can dial my turrets, or hold off with the reticle.
(2) The MIL system uses smaller numbers than the MOA system. And the MIL system does not employ fractions. So, the MOA system requires me to
keep more numbers in my head.... — while trying to keep my mind on the quarry....
For comparison — Extract from a
Dope Chart in MIL:
10y 1.8
20y -0.3
30y -0.4
37y Zero
40y 0.1
50y 0.9
60y 1.9
70y 3
80y 4.3
90y 5.6
100y 7.1
For comparison — Extract from a
Dope Chart in MOA (in fractions and in decimals):
10y 6¾ 6.75
20y -¾ -0.75
30y -1 -1
37y Zero Zero
40y ¾ 0.75
50y 3¼ 3.25
60y 6½ 6.5
70y 10¼ 10.25
80y 14¼ 14.25
90y 18¾ 18.75
100y 23¾ 23.75
(3) For the
MOA system, my ballistic calculator does not give me
fractions, but
exact decimals that are
not rounded to the next quarter. Therefore,
in the heat of the moment I will have to convert 3.73 to 3½, and 12.78 to 12¾. Not cool.
(4) In the
MOA system,
to know exactly how many total clicks I need to dial my turret I must calculate it, e.g.:
A turret setting of 6¾ MOA equal 27 clicks (= 6 full MOA x 4 clicks + 3 quarters).
Compare that to a MIL turret: 2.7 MIL equal 27 clicks. Metric. ➔ Simple. ➔ What else could it be?!
I know the MOA vs. MIL decision for many is simply
a matter of tradition and what you're used to.... Nobody obligates you to change.
I bought my first scope
in utter ignorance of most of it's features (I bought:
wire reticle; MOA/MIL mismatch, too high magnification, no SF, too little elevation adjustment ➔

).
Thanks to the forums the second scope
I bought in full knowledge of the significance of its features. Because I want the best features for my money, and for that I'm willing to get used to something different than my tradition.
Matthias