Cpl. of Horse Craig Harrison set the world record for a sniper kill twice in November of 2009 while serving in Afghanistan. Near the end of a three-hour firefight between British forces and Taliban insurgents he spotted the machine gun team that was pouring lead onto his buddies. But his distance estimate put the two fighters 900 meters outside of the effective range of his rifle.
Again, he watched for six seconds only to see the third shot miss and again he steadied himself and took aim. The fourth shot downed the second enemy fighter.
An Apache later used its lasers to measure the distance between the two spots and calculated it at 2,475 meters, just over 1.5 miles. The two longest sniper kills in recorded history belonged to Harrison.
Harrison later revealed his unique training regimen: "Each night I got my DVD player, put it at the end of the corridor and watched a film while lying in a firing position behind my rifle," he told The Daily Mail. "Once I had mastered the stillness, I started balancing a ten pence piece on the end of the barrel, just to really hold myself to account."