The Vegas shooting got me to wondering about the geometry of a shot like that. Shooter was about 400 yards away and 100 yards or so high. If your gun is zeroed for shooting on level ground, what does the height elevation of the shooter do to the point of impact?
Hunters in mountains would have to deal with this if they are on a mountain and game is below them.
Hunters in mountains would have to deal with this if they are on a mountain and game is below them.