[1] His record stood for over seven years until surpassed by British soldier Craig Harrison with a distance of 2,475 m (2,707 yd).

[2] In March 2002, Furlong participated in Operation Anaconda in Afghanistan's Shah-i-Kot Valley.

A group of three Al-Qaeda fighters was moving into a mountainside position when Furlong took aim with his weapon, a .50 BMG McMillan TAC-50, loaded with Hornady A-MAX 750 gr very-low-drag bullets.

This became the longest sniper kill in history at the time, surpassing the previous record set by his teammate, Master Corporal Arron Perry, by 120 metres (130 yd).

The shot was aided by the ambient air density in the Shah-i-Kot Valley where Furlong operated, which is significantly lower than at sea level due to its 2,700 metres (9,000 ft) mean elevation.