Some problems with reloading your old .22lr casings:
1) The reloading kit is $190
Just for a depriming& packing tool, and a .22lr bullet casting tool, plus instructions?
2) There is a chance the second time the casing is fired that the pin will hit on the previous impact point. There is no primer there because the rim is squeezed together. The more often the casing is fired the more likely it won't fire. After half a dozen reloads, if the casing lasts that long, half of the rim will be compressed and 50% of the time the cartridge won't fire.
3) The method uses Pyrodex, which is caustic and corrosive. I always clean my guns after I shoot them, but recently I forgot to clean my pistol and two weeks passed before I remembered to do it. Since Pyrodex contains Sulfur, Potassium Nitrate, Carbon, Graphite, Potassium Perchlorate and other proprietary ingredients forgetting to clean the weapons it is used in could corrode the barrel and mechanisms severely.