I started reloading a few years ago with a Dillon 550B (get the stand, too). I use mine only for .223 Rem. As ren said, Varget doesn't work so hot in the 550's powder measure. Added a Unique Tek micrometer powder bar after after a while because I could no longer read the marks I was making on the hex screw. Didn't improve stick powder consistency. .
Bought a Lee Classic single-stage press to deprime and resize cases. Eventually wound up with a Lee Perfect Powder Measure to drop stick powders like Varget, Reloder. The Dillon powder measure works much better with ball powder -- e.g., H335, CFE. (Also bought the powder-drain bar from Unique Tek. Be careful. One wrong move and you can make a real mess. Speakin' from experience.) I hand-prime my cases with a Sinclair tool, so actually don't ever use all four stations on the 550B. But I'm about to start reloading some other rifle calibers, so am looking for ways to get more out of my investment in the Dillon. It was pricey to begin with, and none of the stuff I added came free.
You can start reloading for less money. But Dillon's service is as good as they say, and once you get your rhythym, the 550B can produce consistent rounds fairly quickly. Finally, the way ammo costs are going up, spending money on the Dillon doesn't seem so bad these days. Main thing, start making boollits, write everything down and learn from your mistakes. You'll be amazed how far you progress in the next year or two. And next time there's a shortage, try not to grin too much at the poor souls standing in line to buy junk .223 ammo for a buck or more per round.