At most hunting distances as you say, it doesn't make a huge difference...just a small difference. But for that small percentage of longer shots it does make a difference especially in terms of wind-drift, but also drop (especially if you don't dial in) and impact velocity. There are better calibers for the longer shots such as 6mm and 6.5mm. So why disadvantage yourself on the longer shots? If they made a .257 100 grain bullet with a bc of .5 or more, more than one bullet of 110 grains with a bc of around .570 and 120 grain bullets with bc of near .6, then you would have a wonderful caliber that gives up next to nothing at close to medium range but gains significantly at longer range. 7 twist should become the new .257 standard twist.
