What the heck is a MOA?
“MOA – Minute Of Angle. This is a mathematical term that by chance happens to be very useful for measuring accuracy of rifles/ammo. It represents 1″ at 100 yards, 2″ at 200 yards, 3″ at 300 yards, etc etc. In reality it is actually 1.047197551″ at 100 yards, but it is close enough to 1″ (1.145226878″ at 100 meters, a little bit more then 1″). So if you have a rifle that will shoot 1 MOA, it should shoot (barring any wind or other funky atmospheric effects) 1″ groups at 100 yards, 2” groups at 200 yards, etc etc.
