I have debated this one on several occasions.
Fact is, the hunting public is diminishing. There are less and less real hunters out there. Even those who do hunt, how many of them actually process their own game? There is two locals who offer processing station services within a few miles of me.
And for some reason, unless it is jerky, they know even less of how to preserve meat.
I have been hunting. Get up early, sit in a tree stand waiting for that deer to come across, and see not a dang thing. I have friends who sit in their stands for days and get nothing. Go an entire season without bagging a deer.
As for ammo, if it takes more than 2 shots, you probably should not own a firearm.
Shooting in the country: A single shot, can you say where it came from (not counting if you are within a 100yrds of the shot taken)? I cannot. And I hear them all the time. The shot came from that general direction over there. You are not going to pin-point it to a given house.
Traps are good. Minimal input for the output.
Better is having a known quantity. Chickens, rabbits, or even medium livestock.
Then you know you have so many lbs of meat.