Run the empties in the tumbler, with very fine media (to clear rim of spent primer junk). Reprime using homemade priming solution, a little krazy glue and a homemade tool to spin the case (to get it all into the outside of the rim). Size case, for powder 1.2 gr Unique, 40gr .223 cal round nose bullet, heel crimp. So long as the firing pin doesn't ever hit the same place twice, you'll get 4 or 5 firings per case. Some fools just leave the cases lying around, haha, their loss.
I can't even believe it when I hear some people are gullible enough to pay upwards of 4 or 5 cents per round of 22lr, when reloading is as easy as this.