Designed for handgun calibers, and some small rifle calibers. Add a bullet and pull the lever; all other operations are automatic. One loaded cartridge with each pull of the lever. Every operation is automatic. Primers, like the powder, are fed only if a case is present. No wasted primers or spilled powder. Makes learning easy for the first time user and great for fine adjustments or experimenting. You can start reloading good ammunition minutes after the press is bolted down.