I have one magazine for each of my guns and only enough rounds to fill it. I figure in a SHTF scenario when I kill people I will run over there bodies and pick up all of their ammo. Just like in the video games I play to keep my shooting skills up. Think about it, one shooting video game that costs $60, but I can play everyday. While buying ammo and then driving to the range and paying for gas/range fees costs way more than Call Of Duty. Plus its always nice and warm or cool in my house, if I go outside I might get cold or sweat.
Your stock could be a lifetime supply. Or, it could be a 1 hour supply on a really bad day. All depends.
+1You can fit your ammo in the safe?
Yes I had room in the safe. 28 gun Cabinet. I'm still filling it up. I need and idea for ammo storage so I can open up the other side to more long guns in the future. Had at least 2500 rounds of .223, 300 9mm, 300 40sw, 3000 22, 300 20 guage game load and 280 243. Roughly. Ammo is like a magnet for me. I get my calculator out and always try and figure out the per shot price and try and keep that low! I need to start loading myself but that will come in time.