Spotshooter
The Leupold 3-18X is in the MK6 line of scopes. On a side note the Army is moving away from th MK4 3.5-10 (M24) and moving to the MK4 6.5-20 M5 with a 34mm tube (M2010). Army Special Forces use S&B, Nightforce and Leupold (used least ).
Like JGRaider said Nightforces are heavy and bulky, with only fair optics, but they are stout. I can see using them on a purpose built longrange rifle, but not a hunting rifle.
