Hunters who sight in at 200+ & have familiar, practiced ballistic reticles have the ability to make instantaneous longer range shots. Are they always required on animals at 400+ yards? Not really. The last elk I tried to find antlers on at 490 yards didn’t know I was there - she was huge & looked delicious but my cow tag wasn’t good on that side of the highway. The cows before that gave me much less time.

I use a flat shooting 300 Weatherby sighted in at 225 yards. This puts my hash marks on perfectly out to 800 yards on the Conquest 3-15x50 at 15 power. But for everything under 350 yards that is a simple point & shoot.