Something to keep in mind is the energy loss of your round at greater distances. One of the more useful purposes of ballistics charts is to show the energy and velocity bleed at longer distances.

With DG, you want as much punch as possible, both for your benefit and that of the game you are hunting.

Long range hunting certainly has its place. My personal view with DG is the closer the better.

With that said, I agree that we need to pay some attention to the words we use - "sniping", "canned", etc. play right into the anti PR machine.