The weapon is supposed to be remakably accurate in a trained shooter's hands. It is also equipped with a very powerful scope, with which kills could be reliably made at distances far exceeding 1000 meters. It is based on the M4, but uses many "after market" modifications and parts. I wouldn't be surprised if the real life weapon was also loaded with commercial manufacture match grade ammo. Remember, this is a weapon used by SF troops, often times in combat conditions other than war. The Geneva Convention's restrictions on the use of ammunition like hollow-points, does not apply.