Your original context was hunting.
As such, Shawn Carlock or someone put forth the notion that he won't shoot unless he'd be completely amazed that he didn't make the kill.
I think that's a pretty good measure. Hence, MOA is perhaps good enough in some cases and sub par in others. i.e. depends on what you're hunting and how far
Plinking doesn't really matter, and competition usually requires half that or better.
That said, it's also important to hit what you're aiming at. A rifle may shoot tight groups. But, you have to be able to put the first shot in the kill zone.
-- richard
That is a pretty good way to explain it. Never really thought of it that way. I tend to be pretty conservative on my shot selection these days I guess. That may behoove me well when it comes into getting more long range. I have shot 1 animal over 400yds in my life, but that was with a non-long range setup, factory ammo, half #$% optics. But it only takes on kill to make me want to do more of it. With that said, I want to be more confident in what I am doing. I kinda have a plot in my head about how I am going to accumulate the proper equipment and skills over time. I say "over time" because lets be honest, toys are expensive these days. By the time you put on a good long range scope, work up a good load, have a good range finder and a wind meter, and practice, it's not unreal to put a 3k or so into it. I am so excited to get to that point though that it is tough. I won't have everything together by this fall and it is gonna kill me to have a chance to shoot soemthing at long range that I won't be able to do because I am not ready/setup for it. But that's the side of being a hunter that make us responsible. Like you stated, if you don't think you are goign to be gutting it after your shot, you probably shouldn't take it.