The proof was in the chasing.
The problem you see when your a guide is a whole lot of hunters who have not touched their deer rifle since last year, or they bought a new rifle and had the shop bore sight it then they head out hunting without even firing the gun, or they go to Walmart and buy a box of shells on sale with no idea of what grain of bullet they should use or what grain of bullet thet bought last year. Or they can't tell if a deer is 100 yards or 250 yards.
I had a young guy who kept missing deer.When I ask where he was sighted in for he said he hit a cardboard box 25 yards away and his dad said," Hell thats close enough." I had another hunter shooting a 340 Weatherby Mag. He couldn't pull thje trigger without closing his eyes and jerking the trigger. I started taking them all to the range for a few shots before we ever left camp. That helped a little but nothing but time in the field will cure buck fever.