Is that a joke, stereotype, or a serious proposition? I've only ever been hunting trips that started so early in the morning that nobody drank anything other than coffee. Afterwards, sure. Maybe there's another way.
> Is that a joke, stereotype, or a serious proposition?
Yes, certainly.
On a multi-day trip where the vast majority of the time is spent not seeing anything, and a vanishing percent is seeing something very briefly and needing to ready your gun, calm your nerves, aim, fire, in less than a second... you find any way possible to minimize time spent in the "calm your nerves" portion and improve the accuracy of the "aim, fire" one.
If that ties in with improved mood during the "not see anything" potion, even better.
I believe this is even reflected in some video games, where drinking will give you “deadeye” for a period, rendering your shots more accurate.