i have been confused to no end on MOA and the references. i understand the 1MOA is 1" @100yds and so on. now, does that mean that if you are sighted in at 200yds, the MOA for a 400yd shot would be 2MOA? or because it is at 400yds, it would be the 4MOA? and is there any data sheets that have a generalized MOA calculation for distance?