I think that as a hunter you have an ethical duty to make a clean kill on your quarry. I personally don't feel that a 2000 yard shot is ethical. Too much of a chance of just wounding an animal, no matter who is at the trigger. I personally feel comfortable out to about 400. I wouldn't think of taking a shot longer than that. See that is when I use my stalking skills to get into an ethical range and make a clean ethical kill.