I keep spent primers, split brass that is not suitable for reloading, and fired .22 cases in coffee "cans" (those red plastic containers Folgers Coffe comes in) near my reloading bench. Took twenty-six pounds yesterday in for a total or $33.80 to go into my gun fund.
To be honest, in this day and age it's worth saving a lot of different types of scrap metals and holding on to them for the long run.
brass, copper, nickel, silver, gold, etc.... So yes, I save my .22's and keep them in the barn.
Arbitrary enforcement of the law is the mark of tyranny. Citizens will always fight against it.