Are you really considering shooting an animal that far? Curious as to what your bowhunting experience. education, and mentors are.
You're grouping broadheads or fieldpoints like that at 140? Is that every single time or your best group ever at that range? Are you bragging or seriously asking? Ever do it in varying wind conditions? In hunting gear? Ever experienced the nerves of shooting at a live animal? If you are shooting an insanely fast bow it still takes nearly a second for an arrow to travel 100 yards. An animal can easily shift a couple feet in a second, and any animal calm enough to shoot that far is calm enough to put a stalk on. Wounded animals are a different story, fling away on them and that is one of the reasons I practice farther than my ethical limit.
If you poke a hole in the lungs you're probably going to kill them but the number of ifs that come into play is directly related to the distance. I try to avoid judging what another guy can and can't do or his motivations but my personal limit is 60 yards and the challenge to me is to get much closer than that. I just don't understand the appeal of long range hunting with a gun or bow, but that's a separate debate. I just hope if you are a new archer that you think this out a bit more before you drop the string on an animal that far. I much prefer 20-30 yards. I've shot somewhere in the neighborhood of 12 big game animals so far with a bow and one was farther than 30 yards.