@khesser,
i have LOTS of brown bear clients that come up here from the lower 48 that are very comfortable with their shooting ability. and, maybe even have rifles that deliver more energy at 250 yards than mine does at the muzzle. however, when the shooting starts, their "expertise/comfort" disappears quickly when a poor shot is made. (and they do make poor shots)
i do a little show and tell to the 4 clients that are newly on the boat we hunt brown bears off of. it goes like this:
i hold up a hunting magazine that at least 2 of them have brought onto the boat. I ask, "who could hit this magazine with their rifle at 100 yards?" they all confidently nod and confirm they could. then i ask, "who could hit it a 200 yards?" there is ALWAYS a pause, and then most of them nod that yes they think they could hit that as well. then i slap the magazine (you know 8.8"x11") to my chest, growl, spin in place a couple of times and take off in a direction that i happen to be pointing in when i stop spinning. then i ask, "how many of you could hit that magazine at 200+ yards, AND realize a bear moves about 5-7 times faster than i do." NOBODY ever says anything.
that's because hitting a sitting still animal at long range and hitting a spinning/running animal at long range are waaaay different. it is much easier to put shots on target at 50 yards than 250+. the bullet hits harder, (more energy) goes deeper and does more damage. AND, beyond 300 yards is just stupid and irresponsible.
we had a hunter that insisted on shooting at a very large bear, 10 footer at a ranged 300 yards. he had 2 guides with him as backup, was not sure they could get closer, so at the hunters absolute insistence they allowed him to shoot since 300 yards was "not a big deal, i can make this shot" for him. he hit the bear, and it took off. every one emptied their guns, the bear got away, wounded to some degree, was followed for 3/4 mile when blood ran out and it got away. that hunter was done hunting, he had cut his tag on that wounded bear. (the hunter and the guides all felt sick to their stomaches about how it turned out) now afterward, i think that he learned something but that is a very expensive lesson, and the hunters that think they can shoot long range at dangerous game are simply not thinking "what happens next?"
dangerous game should never be shot at long range, and for my hunting group, over 200 yards at a brown bear (yes, the arbitrary 200 yard distance) is long range, unless it was previously wounded, getting away and was over 200 yards.
so, if you can make solid hits at 9x11" targets spinning and moving at 35 mph (yep they run that fast) good on ya but you will be alone because i can't. your guide can't, and i have yet to meet the guy that can.
those real long range shots 500+ yards, it takes about 5 minutes to set up just to hit (maybe) that animal. then they are going to calculate and hit it running and changing range and speed at that range or beyond? hmmmm.
my 2 cents.