This one would be.
The M107 .50-caliber long range rifle is semi-automatic and is being fielded to infantry soldiers. It can engage targets to 2,000 meters with precision. At 29 inches long, the frame mounted, bolt-action XM107 weighs 28.5 pounds with optics. It is manufactured by Barrett Firearms Manufacturing, Inc. The XM107 is a rapid-fire; man portable, shoulder-fired, recoil operated semi-automatic system utilizing military standard .50 caliber ammunition. The primary components of the system consist of a rifle, day optical sighting system and hard carrying case(s).
Army snipers deliver precision fire against enemy targets that are outside a rifleman's limitations of range, size, location, mobility and visibility. The M107 is derived from the M82A1 commercial version of the weapon that is manufactured by Barrett Firearms Manufacturing, Inc. of Murfreesboro, TN. It can defeat materiel targets located at distances beyond the range of the standard M24 7.62mm Sniper Weapon System, Galeazzi said. In the hands of a trained sniper, the M107 can surgically take out strategic targets while minimizing collateral damage. It is capable of hitting personnel targets as far away as 1500 meters and materiel targets out to 2000 meters.
Right now the record longest kill shot goes to a Canadian sniper team with a confirmed kill at 2 miles or 2.94 km with above rifle, in Iraq.