1 MOA at 100 yards is 1.047" and goes out angular from there so it's 2.094" at 200, 3.141" at 400 etc.
Yeah, OK, you are correct, now find one of us who at 400 yards that can judge, hold or correct 0.141 actual inches at 400 yards.
Yes we all know that a MOA is 1.047 inches. We also know when we say, as in coaching or spotting, (regarding sights) "give me a minute left" or "give me a minute down" everyone knows we are talking about MOA. We don't say give me 1.047, or 2.094, etc.
For all practical AND I MEAN PRACTIAL purposes, a MOA is one inch. Lets move to 1000 yards, the differance between an inch, and a Moa, is .47. Thats less then 1/2 inch actual. Don't know about you, but looking through the spotting scope, I cant tell if I hit a pinwheel X or if I'm 1/2 inches away from a Pinwheel.
This 1 vs 1.047 does nothing but confuse the issue, especially to new shooters. Guns don't shoot with in .047, ammo dosn't shoot withing .047 and shooters don't shoot within .047 nor can we shooters tell the differance.
So lets stop getting picky, shooting is 95% + mental anyway, adding something else to worry about just makes it worse, more then any gain we get by trying to get that extra .047 inch.