Really appreciate the info guys!!!
I've come close to getting a used 550 on here a few times, but have just been waiting for my loading room so I didn't have to add more stuff to move and pack up.
What would be the advantages and disadvantages of a 550 vs a 750/650 as it relates to auto indexing vs manual when it comes to making good ammo? Wouldnt auto indexing always be preferred, or is there some reason youd not want that if you were throwing the powder off press? I would think the 550 /650/750 (whichever I go with) would be mainly used for making a lot of 223 ammo that is really good, but maybe not quite what I can do on a single stage.
I figure the plinking pistol and plinking rifle ammo (though if im being honest i want all rifle ammo to be pretty good) both will be done on the 1050, and true precision rifle done the same way I do now on single.
For .223/5.56 stuff, the 1050/1100 will be the tool for the job (at least for one of the passes) due to them having on-press swaging.
As far as 550 vs 750 (BTW/FWIW I hate the 650 priming system so I wouldn't even consider one)...
If/when loading the same stuff, a 750 will end up being a lot faster, it's designed to be, there's no getting around the advantages of auto-indexing versus manually indexing the shell plate. A 550 can do all sorts of things well, but not pure speed, the biggest thing IMO is that they weren't originally designed with a case feeder in mind, so when you add one, the case feeder mounted up front kind of ends up getting in the way a bit for certain things (and IDK if one can even add an MBF to a 550?). I don't really think of a 550 as a true progressive press... a 550 is more like sort of a single-stage/turret/progressive-hybrid.
JMHO but if you're going to hold onto a dedicated single-stage (which I think is a good idea) then that kind of cancels out some of the usefulness of a 550 in your case.
I guess I would look at it like this: 750 for fast brass prep (that doesn't need to be swaged), high-volume pistol rounds, and high-volume rifle stuff if you want... while a 1050/1100 is pretty much built for automation and fast high-volume rifle stuff.
The cool thing about having a few different presses around is that you'll probably come up with ways to use them together in tandem to accomplish different things.
I know I went on and on about how I prefer making my precision rifle ammo all on a single-stage... but if I wanted pure speed with the least amount of manual labor, I'd buy a couple of tool heads and run a couple of passes on my 750: 1 pass to decap and FL size, then I'd tumble off the lube, and then another pass to mandrel the cases, prime, and then hit an M die (something I've always wanted to try in lieu of a chamfer step). For the final/last step I'd just put all the cases in loading blocks, drop powder with a funnel, and then seat bullets like I prefer to with the single-stage. Since I try to stay on top of things, loading 100 here and 100 there, doing it all on the single-stage really isn't that bad... but every time I batch load 300-400+ I wonder why I don't have that shit setup and ready to go already lol.