A lot of unknowns about this shot, ammo, wind, temp, pressure, elevation, ect. But... Using .50 BMG 750gr Hornady A-max with a G7 drag, 0 degree angle, zeroed at 1000yds, and no wind. The bullet drop at 3000 yds (2745m) would be 174 FEET(53m)!! At the target distance of 3540m (3870yds) the bullet drop is 374ft (114m)!!!!
I have no idea how a scope could be adjusted for that kind of drop