I’d say that if a fellow was going to hunt in any of the western states, they should prepare and practice out to at least 400 yards..the reason I say this is because while some (if not most) are less than 300, there’s going to be those situations where they’re a bit farther. I don’t condone long range shooting much past that just based on my own practice and results with targets. Not saying a very experienced shooter can’t successfully shoot further, but my personal opinions/ethics fall within those ranges. With that said, I shot my last mule deer at a ranged 410 yds with my 7 mm mag last season in Idaho. Other opinions may vary.