I’m pretty sure you could be in a helicopter firing directly down and a 200 yard hold wouldn’t be off enough to miss an elk.
The main things that will drive a shot like that wide enough to miss are contacting a branch or dirt between you and the animal, or the elevation knob brushed against something and you’re a full turn or two off, but you would have seen that after the fact.
You may not have seen dirt or a branch in the scope, but when using a low bipod it’s not a mater of if, but when being so low to the ground gets you in trouble. I couldn’t take a shot on a 200 yard bear because of it, and another shot at a deer across a meadow. Because of that, 200 yard shots are now automatically taken from a sitting position, or even shooting over a pack usually provides more opportunities to get up higher. It’s better you learn the lesson on a spike up close so it’s obvious, rather than on the buck of a lifetime at distance.