I was thinking some of what
@Emu articulated. The confidence that comes with the ability to shoot comfortably within certain ranges. I keep targets and notes to remind me of my capabilities and my guns’ capabilities.
Just because I was able to shoot accurately at some point doesn’t mean I retain that ability perpetually. If I put a gun down for a while, it’s time to punch some paper to get a feel for it again. Once I’m satisfied with what I see, I feel ready to hunt. This works for me because it has proven effective. I remember the couple of animals that I did not recover or the handful that suffered longer than I was comfortable with. That drives me to practice and practice build confidence.
I don’t regularly measure group size. I want see how close my POI is to my POA.
I want that first shot to hit where I aim, the second shot too (I want one of them to be a kill shot). I’m generally not shooting at the same animal more than twice. I can’t stress this enough, I have noticed a direct correlation between how this plays out on paper and on quarry. If I have a pattern of nicking a bullseye while practicing, I’ve seen it play out where I nick the eye socket of a squirrel. Aim at the eye with the gun slightly canted and hit between the ear and the eye. It really looks the same on paper with shots hitting right of my POA. This also means shooting paper before going out in various temperatures to verify holds.
Once the gun proves a satisfactory level of accuracy, I have to do my part and know what I’m doing to achieve the desired result. Even then there are other factors in the equation to consider.