MOA is an angular measurement consistent across all distances, assuming a perfect shooter making perfectcalls on wind and other environmental variables. Visualise a long cone, curved to match trajectory, extending from the muzzle of the weapon. A cross section of a 0.5MOA cone of fire at 1200yds would place all shots inside a circle just over 6" in diameter. A cross section of that same 0.5MOA cone at 100yds is a circle just over 0.5" in diameter. 0.01MOA isn't really doable outside of specialized benchrest competitions with solidly mounted rifles where the human element is almost entirely removed as a variable.

ETA: The sort of rifles that produce 0.01MOA groups can be seen here, for those not familiar: http://bulletin.accurateshooter.com/2016/01/unlimited-class-rail-guns-the-epitome-of-precision/

Whole different ballgame, and not so useful for the other practical applications a PRS gun has.

MOA is an angular measurement consistent across all distances, assuming a perfect shooter making perfectcalls on wind and other environmental variables. Visualise a long cone, curved to match trajectory, extending from the muzzle of the weapon. A cross section of a 0.5MOA cone of fire at 1200yds would place all shots inside a circle just over 6" in diameter. A cross section of that same 0.5MOA cone at 100yds is a circle just over 0.5" in diameter. 0.01MOA isn't really doable outside of specialized benchrest competitions with solidly mounted rifles where the human element is almost entirely removed as a variable.