Sometimes you hunt areas where you could be shooting 50 yards or 450 and never know where the game will show up, if your not shooting 500+ not much use to dial. Oh BTW while your showing targets.
3 shots at 750 yards, shot prone off a bipod
https://imgur.com/x7as2zgIt ain't hard
And also it's not guessing, +3" at 100 with most modern cartridges =
100 yards, hold lower shoulder,
200 yards hold mid shoulder,
300 yards hold upper shoulder
400 yards hold on hairline
Run the numbers and prove me wrong