Those long range shots they make are intriging but in my eye, unethical. Now I've watched the show and I saw them take pronghorn at 1000 yds a bighorn at 745 yds. And took them cleanly. Of course they only show the hits. Editing is a wonderful thing. At those distances, the animal doesn't know what's going on if you miss. He sees a puff of dust orwhatever. It may startle him but I don't think it will spook him.
It may be fun to shoot paper at those ranges or vermin like ground hogs or prairie dogs. But a game animal deserves more respect than that. At least in my eye.