The dillons just plain work well. I have 2 650s set up for my high volume stuff like 40 s&w for uspsa shooting. I keep one with the large primer(45acp) and one with the small primer system(40 sw and 9 mm). I have 3 550s set up for lower volume stuff, 2 with large primer and 1 with small. Right now they are 44mag, 41mag and 357 mag. I purchased the 1st 550 new in 1985 or 1986 and the 650 new about 2000. The others I got in pawn shops or from individuals for great prices. Caliber changes when needed are a snap with my setup as the priming system change is what slows you down. One thing I would not recommend is the 550 case feeder. I picked one up a long time ago and have had problems with reliability . The 650 needs a case feeder and I would not be without one. The hornady would likely be fine once you learn it's system but I started with blue before hornady was even on the radar. Most of us high volume competitive shooters like blue especially 650s since they run so good and mostly trouble free. Dillons warranty is definitely no bs as well

Dogdoc