A progressive reloader works by simultaneously completing several reloading tasks by simply pushing its lever up and down. Dillon sells three types of reloading presses as of 2015, and these are progressive reloading press types. This type of reloading machine has a high output rate compared to other types, such as the single-stage and turret reloading machines.
Like other progressive reloading presses, Dillon reloading machines are more complex than single-stage and turret reloaders are. While it only takes a short time to reload a large amount of ammunition with progressive presses, setting up the machine can also take quite a bit of time. Progressive machines are usually made up of several parts including the case feeder, powder measure, primer seater, shell plate and the lever.
Progressive reloading presses save time as most of the tasks involved in the reloading process are accomplished by manipulating the lever. These tasks include removing and replacing primers, squeezing back the brass casing into its original dimensions, dispensing of the gunpowder, flaring the case mouth, seating the bullet and crimping the mouth of the casing.
The Dillon Square Deal 'B' is recommended for reloading small handgun calibers from .32 S&W to .45 COLT. Dillon claims that its 550B model is its most versatile model having the ability to load up to 160 different calibers. The XL 650 is the priciest of the Dillon models and has features such as automatic indexing and a powder-level sensor.