I'll chime in with my $.02 here though i'm not what many refer to as a long range guy. For a little background, i was raised on a ranch that could support 20-25 bucks being taken every year. At times, the uncles, friends, and i would hunt outa jeeps working canyons or big brush patches and if a buck showed himself, he'd get shot at until he either got away or went down. Distance really wasn't a factor back then. If you could still see him, you shot at him. I had a few friends that also hunted similar to the way we did when they all got together so i figured at the time, that this was normal SOP.
After a few years of going on these "fun Hunts" and having many years of spotting deer and opening gates for my Dad while he drank his beers and cruised the ranches looking for a easy shot right out his pickup window, i started really wanting to get away from "that" type of hunting altogether and most of the time, i'd be off hunting the back country with no roads and much better hunting. I hunted with a 25-06. Shots at game were sometimes still "out there" but i had a lot more time and being by myself, many times, i'd get way closer and make the sure one shot kill. About this time, i went on a streak of one shot kills that lasted many years.
The biggest factor,IMO, in today's long range shooting at game, is the Range Finder!! Those that don't use one, don't have or want one, should surely keep their shots under 200-300 yards! Once i got mine and developed a range routine that works for me to practice field conditions, with known distances, i realized i was then ready to increase the range that i could still continue the much preferred, one shot kills on bucks, even those that i couldn't get closer to. Now i can pretty much handle anything out to 500 yds, or bit more which is a very long ways, if need be with confidence and a good amount of certainty. Myself, i love the idea of being prepared to take these kind of shots, especially if "THE ONE" ever gives me that once in a lifetime opportunity.
So, 500+ is about my limit. I can't or won't say what someone else's limit might or should be. Though i used to shoot A LOT, i don't get in near the range time that i once did. I'm sure that there are many many guys here in these pages and out there in the stix that can exceed my self imposed limits comfortably. Those that say that there is no or little satisfaction in taking big game out there at a good long ways, are FOS IMO! I greatly take satisfaction knowing i can get er done and then doing it when the chance presents itself. To me, that's a lot of what it's all about.
On the other hand, a guy new to the game buying a high dollar outfit and putting it to use on game at long distances without paying "his dues" is, to my way of thinking and another members term, being careless and "Foolish"!
Joey