The article in the August 14th “odds n’ sods” (Scots Guards Sniper Kills Taliban Leader with Longest Shot ) quotes the longest shot on record being this one by Cpl. Christopher Reynolds. Cpl Reynolds says it is the longest shot (confirmed kill) in Afghanistan. Apologies in advance if I am wrong, but the longest confirmed kill anywhere was done by Master Corporal Rob Furlong  (Princess Patricia’s Canadian Light Infantry or PPCLI) in Operation Anaconda in Afghanistan at a distance of 2,430 meters in 2002. He used a McMillan Tac-50 rifle .
The second longest was Master Corporal Aaron Perry (also PPCLI in Operation Anaconda) at 2,310 meters.
The third longest was the legendary Gunnery Sergeant Carlos Hathcock (USMC) in South Vietnam 1967 at 2,286 meters.
None of this is to take away from the brilliant work by Cpl Reynolds, but just to keep the Daily Express honest in their reporting. – Anon. Lima