Good for you, Bryan!
There is a long, detailed article on the use of snipers in recent military conflicts over seas. Wednesday, May 9.
Typically, a well-equipped sniper in WW II could be expected to hit a human target with a single shot at about 600 yards in favorable conditions and during daylight. Today, snipers can typically hit targets at twice that range -- from more than half a mile away -- and at night, said Bryan Litz, a ballistics expert at Berger Bullets who has done military contract work.