Long shot shots , long range are great, Some guys are that good.. We kicked a guy off our lease for making unethical shots , wounded an animal , never recovered.. He shot the second one like that too, but we recovered it and finished it off, while he bragged he took the longest shot. (he never touched the animal he shot),, I got no use for a man that doesn't touch the animal he shot, even a coyote.
.. I was a mountain hunter for years since 1963 ... I always took into consideration the animal i was after, not the the longest shot.... If i wanted to shoot long distance; would do that on targets , or praire dogs ,,, Still as hunters we have to be humane. If i saw an animal at 400 yds , it would be a stalk for me,,,because i don't carry a backpack and a tripod etc with me..
.All those reloads you have there , i have done many times over the years.. Now that I am retired , i do more of it, and do just the proven loads for my rifles. I love the 270 with the IMR 4831. I have a Douglas barrel on mine. I do a different kind of hunting and my savage model 10 , 308 is what i use for hogs and coyotes .. with 3031 powder 125 gr bullet... I carry a 45 ACP , and i would carry it in bear country, if that was where i was hunting...but always with a partner.. I have shot two black bear in my time. Just came upon them accidently I say, and they were too close for comfort, on a mountain,,,i had a 308 Win. Model 100, in those days...and my rifle was all i carried and a samich in my pocket. (belt with 20 rds, a knife, pack of Pall Malls , my pipe with Cherry blend tobacco)