[proud American in Canada]

Corporal Rob Furlong of the Canadian Forces holds the record for the longest confirmed sniper kill at 2430 meters (1.51 miles.)

Yes, and if I recall correctly, he received an award from the U.S. military for it.

[CholeraJoe]

From his Wikipedia page:

Furlong received a Mention in Dispatch for "impressive professionalism and dedication to duty through his valiant conduct while under direct and indirect fire and his actions helped ensure the success of the mission" and a US Armed Forces Bronze Star.