Ok, even in a sustained situation.
Imagine ahving to fire several hundred rounds per month. How many months will you survive this before you get killed?
Seriously.
None of us like to think this, but I don’t think it will be like on TV, where the good guy always wins.
If you fire several hundred rounds, won’t several hundred rounds be fired back at you? Your luck really that good?
Mine isn’t.
And, as I said, whatever ammo you have left is now in the hands of the enemy.
Me, I stick with a few hundred rounds for each caliber. And that’s mainly becuase I make a long drive to buy it cheap, so while I’m out there, I stock up. (Fin Feather and Fur, in Ashland OH, in case you guys are Buckeyes.)
But the wife and I shoot every weak, so it depletes eventually.
So your plan is to die early if extended warfare exists?
lol You will be one of the neighbors coming to me for ammo!
Approach the sandbags slowly with your hands in plain sight and clearly say “Eagles Up!”
There is no clear best, or even likely, scenario.
Don't give up. That's for liberal collectivist monkeys whose tiny and inconsequential skillsets wouldn't keep them warm or feed them if their lives depended upon them. So they'll die and die badly. That's not you. It doesn't have to be you. Follow the link and read the book.