Distance X( how far a round can travel under ideal conditions) for standard .50 cal ball ammo is 6,500 meters with 5degrees left and right of the target foe dispersion ( aim, wind drift etc.) another 5 degrees left and right of the target for ricochet plus an additional 100 meters for a safety buffer where no person shall be. So from the firing point if you shoot an azimuth 15 degrees left and right of the target and extend it out 6,500 meters that is what the army requires to be safe for .50 cal
"A pistol defends your property and your person from unanticipated threats from thieves and robbers. With it, you can control your immediate environment. A rifle defends your freedom from oppressors and tyrants. With it, you can enforce your will" -Gabe Saurez