moa = minute of angle
1 moa = 1/60 de degré
1 moa = .01666666 degré
60 moa = 1 degré
1 MOA spreads about 1" per 100 yards. (actually 1.047")
1 MOA is a different size at different distances, 8" at 800 yards is still just 1 MOA.
100 yds 200 yds 300 yds 400 yds 500 yds 600 yds 700 yds 800 yds
1" 2" 3" 4" 5" 6" 7" 8"