It would depend on the guy behind the rifle, and the conditions that the individual and rifle had been exposed to. From a nice comfortable position with a recently check zeroed rifle first round hits would be expected. From a drainage ditch, with mountain on your back and blowing out your axxe then people are human, misses happen. The amount of idiots volunteering and there abilities also have an effect, the wiser ones stayed far out. The idiots got closer. Some remarkable shots have been made both at distance and against multiple or moving targets, sometimes both.I heard from an old boy that made a career of shooting at similar organic targets then training others to do it that more often than not the shots are walked in, is that the case? If so that wouldn’t work with deer.
But agree 400 yards isn’t that far!
And I agree attempting to walk shots In on Deer is not bright, to be fair most deer are smarter than most people.

