There's a rule amongst hunters called ethical kill. You going to shoot it from that far out it needs to be a clean kill, not where the animal runs off and dies.
I know I made this comment in another thread the other day but I feel that there are a lot of people out there that are more capable of making these kind of kills than the people that shoot a gun one time a year. I think that's worse in my opinion, they don't even know if their rifle is zeroed and not having any trigger time with a perishable skill. I know last year I shot over 2000 rounds through my bolt guns and can pretty consistently make cold bore shots on a 10 or 12" plate out to 700 yards with a .308. A few friends and my father in law are happy with a paper plate at 100 and that's not an exaggeration.
I would wager he is a small minority that is at that level.I know one of the posters here is a big time North American big game hunter and they bought a rifle specifically to take big game at distance with one shot for an ethical kill.