on another forum there is a god, even got him to admit moderate amount of people regardless of their gear or prep are consistent killers to 450 and few to 600, and beyond that there's exponentially fewer and those that can spend more time a year in competition or at ranges etc. than they probably do with their own families, so for the purposes of discussion you gotta think about the 98% of us that aren't gonna live like that and more rounded outdoorsmen who fish and do all sorts of other things....in that 98% then hunting has become defined, indirectly, on that same forum, full of these alpha prs 'western' rockstars regular shooting competing to 1200 yards when polled what their limits on game are guess where most of them comment? yup 500-600....
now why is that? I ran up and down the ladder a bit and came to these same conclusions myself and no one really wants to verbalize or study why does it seem to cap out around 600 on the far end and 450 on the middle end? natural laws seem to be there, why? lets go into it then, I've been verbalizing this for awhile as that's how I tend to connect dots...and when I did since I came from a lot of bowhunting leading into my powder burner obsessions there are natural limits the majority there, 50-70 yards, like the 450/600 yards.....start looking at patterns in Time Of Flight (TOF), 0.5 to 0.75 seconds starts to emerge. Our projectiles have a certain velocity range and drop/wind drift range....there are natural limits there to observe, 2400-3200 fps, .4 to .6 bc type ranges. Live animals. Field conditions accuracy! and lastly wind reading ability...most choose to stay within 20" whether they call it mils or moa or whatever...it all maths back to their ability to read wind close enough and then drift into 12-18" ballon circular kill zones feeling confident enough you got the wind called close enough to make that drift, usually not holding much off fur at all for wind, no wind, easier to go 600, more wind....that 20" might be more like 400 yards on the prairies one day etc. most guys are gonna be about double their typical range moa in field shooting conditions, and of course live animals move as some of the factor into the TOF also
so hunting is 0-mpbr, long range hunting is mpbr to approx. 600 for the 98% of us....whew, glad we finally got that sorted out, and many of us won't be at the top of that 98% either lol, it's a curve, we're all on it somewhere, some years with more shooting and good set up we might be further up it, other years not so much
once you define it for yourself then see how much data you actually need to account for and you can boil your solutions down from there, you squeak more on your top ends with the higher bc and faster options of course, which most are choosing for this type of shooting anyway, I'd start from 6cm 108's and go up from there, 6.5cm, 6.5 prc is likely where'd I'd stop if I was trying for an 800 yard rig, a 6.5cm would hammer at 600 no prob and I'll choose low recoil with least powder burned necessary, but if 7mm on up you must carry on, to get those bc's the bullets/powder/recoil really start to climb jumping past 6.5's, do you need ffp/mil to go 600?, make up your own mind there, an old Burris ff2 3-9x40 ballistic flex can get you there too, one might be much faster, simpler and easier to use with just a regular rangefinder than the other...endless options in between
have fun, I shot my longer range builds really well with 14x on top end, good range to be in at 600 and bit more