Gentlemen...I know

took and oath to never tell the "sniper's secrets". I too, took an oath, but it was with a female in a bar, and when she ran out of money for my drinks all bets were off on the oath. Sooooooooo.....
Allow me to explain how snipers can hit human targets at 1000 yards.
Ya see, snipers have spotters. It is the spotters job to spot the human bad guy target, run over to said target, and hand him a wawkie tawkie. Once this is complete, said spotter haul asses back to

.

then drops his crosshairs on human bad guy and takes a shot. The spotter watches where the bullet goes and instructs human bad guy, via wawkie tawkie, to move in alignment with the bullet's path.

then shoots again, and since the human bad guy has politely moved into the bullet's path, he is hit and killded. It's all that simple, almost the same as if you are shooting low you should raise your target.
There have been grumblings lately that budget cuts have removed the wawkie tawkie from the equation and the spotter has to run back and forth, REAL fast, to tell human bad guy where to move so he can be shot. I will be Teeing off on Parris Island this Friday at 8AM. I will verify the part on wawkie tawkies being removed due to budget constraints during said round of golf.