I will add my $0.02 into the mix. The following is a quick story about my last hunt.
I shoot to 600 regularly. I shoot from the bench, prone off of a bipod or a pack, and sitting or kneeling using a standard Bog Pod tripod or Rudolph sticks (
https://www.rudolphoptics.com/products/rudolph-ph-shooting-sticks). I have shot animals at between 300 and 400 yards numerous times from various positions, most commonly off of a tripod or prone off of a pack. I am a "dial for elevation and hold the wind" shooter.
2 years ago I built a .300 Win Mag on a Savage action specifically to hunt Nilgai in S. TX, which is an annual executives trip in my company. Last January I shot a bull at 206 and shot a cow at 342 with that gun, both while using the Rudolph sticks.
Last week I was in Manitoba on a moose hunt. We hunted hard all week and on the last morning I had a bull step out unexpectedly as we were packing up for the morning (the hunt was from ground positions on remote lakes overlooking marshy areas surrounded by bush). He stepped out at around 450, got into the water and started swimming towards us. We were expecting him to get into the wild rice area at around 200 yards, which would have made the shot pretty easy. Instead, after a little swim, he turned back towards shore and walked back up the lake's edge. I had about a 15 mph cross wind, right to left, with an island of about 60 yards wide at 100 yards away.
In my rush to get positioned, I didn't get my tripod set up right and, as such, was not nearly as stable as I should have been. My first shot was at right around 360 yards (slightly quartering away, facing right) and missed completely. I shot right over his back. I missed because I let my excitement and "bull fever" get in the way of my process. The next two shots I got was when he got out of the water at around 425. Again, he was slightly quartered away (facing left). I missed both of those shots as well. In my continued excitement and getting into my own head about missing the first one, I completely forgot to hold for the wind. At that distance with the wind that was there, there was about 4.25 MOA of wind drift (180 grain Nosler Partition at 2900 fps). Add in my 1.25-2 MOA margin of error due to my continued poor positioning, and voila, two shots that ended up passing right in front of the bull as he stood there trying to figure out what was going on. At that point, he walked up the shore and into the bush.
So, sometimes it isn't inexperience that causes bad shots, it is bad decision making and "bull fever". A truly humbling lesson for me as I have not gotten that rattled on an animal since my first buck at age 12.