I'm a (way) bit thick, but i don't get this!
A storebought 22LR round costs you something like 4½ cents/pop and you want to spend money on matches/powder/boolit and invest your time?
A squirrel collects in the fat times and stores for the lean.
If you invest half a Bud Light/ 2 fags per working day (@40 cents) then you can sqirrel away 9 22LR shots a day. In a working year (240 days?) that would be 2150 pcs.
I wonder how many you would need during a zombie attack/siege