I use a Dillon 550 for bulk AND precision. For the latter, I run it more like a single-stage machine. There are a number of articles about loading precision ammo on a progressive. I guess I've about figured it out; here are today's seating depth fine-tuning results at 300 yards (yes, 300 - flat calm wind helped) based on Berger Bullets' article using 3-shot groups. Peterson 6.5CM SRP brass, CCI450 primer, Berger 140 Hybrid, 41.2gr H4350. I ran the 0.01, 0.05, 0.09, and 0.13 off the lands last week. 0.05 off was best, Per the article, I tried fine-tuning with 0.03 (B), 0.05 (A, the 2-round one), and 0.07 (C) off the lands. Grid is 1/4". Shots were round-robin (A-B-C repeat 3x except A).
All 9 shots combined went into 1.25" vertical and .75" horizontal, again at 300 yards. It will be interesting to see if group C is a fluke or if it can be replicated. If repeatable, I'll be astounded.
Point is, I don't see that it's completely necessary to have an arbor press or similar to assemble precision ammo. And I can turn out pistol or bulk .223 ammo pretty fast as well. Fwiw, I personally prefer the non-auto-indexing 550 for a better feel, especially primer seating, but that's just me.
I agree there's a lot going on with a progressive for a new handloader. Again, the press can be used in a single-stage mode: Deprime/resize/prime (or separate out the prime) for all the cases, pour powder charge (you don't have to drop from a measure!) and put charged cases in a loading block, seat bullets. It's doable if one goes slow and pays attention. Not nearly as messy as pouring shot all over the floor with a progressive shotshell loader...
Edit: It's very hard to go wrong with Dillon. Don't like it? Send it back within 30 days for a refund (I assume that's still the norm; best to check). Call for support? A human, not a machine, answers the phone (at least that was the case last time I called). If something breaks, they replace it. Forever. Mine is 23 years old. Nothing has ever broken. One piece wore out. They sent me an RMA for a replacement. It's a one-time purchase, investment for a lifetime (and no, they don't do sales or Black Friday),