longest range recorded for sniper kill

The longest range recorded for sniper kill is 2,430 metres (2,657 yd), accomplished by a Canadian sniper, Corporal Rob Furlong, during the invasion of Afghanistan, using a .50 caliber BMG (12.7 mm) McMillan TAC-50 bolt-action rifle. This meant that the bullet had a flight time of ≈ 4.5 seconds, and a drop of ≈ 70 meters (230 ft).