Good luck & happy retirement!
I'm headed that way myself...
Going to auction off all the machine tools, haul everything else to the scrap yard and buy me a $100 fishing pole and $20,000 worth of .22LR or .17HMR rounds ...
I'm going to be the crazy old bastard that is mean enough to shoot a fish!!!
APPLICATION, APPLICATION, APPLICATION !!!
*IF* You shoot a crap load of ONE pistol caliber (or I hear there is a .223 version),
AND,
You don't mind loading cases & setting bullets by hand...
The Dillon Square Deal B is VERY hard to beat!
Set a case, set a bullet & pull the handle, self indexing so it spits a loaded round out with every pull of the handle.
No provision for case feeder, which didn't bother me much loading speed gun ammo, but I do wish there was a provision for powder check without looking down into every case.
First die knocks out primer & sizes the case,
-- auto index, next die installs primer (from 100 count tube feeder) and Flair's case neck, drops powder charge,
-- auto index, next die seats a manually set bullet,
-- auto index, last of 4 dies removes case flair, and if you wish taper crimps the round.
Set case on one side, set bullet on the other side, pull handle and live round spits out after the first 4 pulls, takes another 4 pulls to clear the last round from the machine.
https://www.dillonprecision.com/dillon-square-deal-b_8_1_25237.html?pkg_cust=1
I've had my SDB for about 20 years, zero trouble with it other than proprietary die sets.
Order with your favorite caliber, carbide dies if available and you are off to the races!
This is by far the most simple of the progressive machines to tune, it comes set up so only minor assembly (like putting the powder dropper on the tool head) is required, and some very minor die adjustments to get your rounds EXACTLY the way you want them is required.
Caliber changes are fairly easy, but not quick, while switching from small to large primers is a pain in the butt!
Just a buying tip, Dillon presses show up on places like eBay much cheaper than Dillon retails the presses for, so don't get locked into the suggested retail price.
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Something like the Lee 'Classic Turret' is a time saver if you do several different calibers.
Keep in mind this IS NOT an actual Turret' press, it simply has a rotating tool head with 3 or 4 stations.
Tool heads are cheap, so you can get extras & leave your dies set in them, in caliber, or even firearm specific sets.
With extra tool heads, caliber changes take about 5 seconds!
This has the extra advantage of leaving universal decapping dies, bullet puller, swaging dies, etc set up in a tool head, you can switch in 5 seconds to anything in a tool head, on the spot when it's needed.
A BIG plus is this press doesn't use any propritary parts other than the tool heads.
About all common dies & press tools will work with it.
In no stretch of the imagination is this self indexing, but a flick of the wrist let's you seat a bullet, then switch to a taper/crimp die.
Real handy for those of us that won't use a roll crimp die, but perfer a factory crimp style die.
Without some Lee add-ons it doesn't supply primers, and Lee auto feed primer systems are twichy/glitchy at best (and useless at worst).
Outside of my Dillons, the Lee classic 3 hole turret press gets the biggest work out on my bench.
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I would skip the Dillon 550 series entirely.
If you want self feeding (case feeder) and to use common dies,
AND DO VOLUME of several calibers, then skip directly to the XL650.
The extra die station gives you the capacity to run factory crimp die & have a powder check at the same time.
With case feeder & bullet feeder, this is a manually powered ammo plant with a lifetime warranty.
($1,350 makes most people run for cover, but a solid 500 rounds an hour without squibs is possible with an average man operating it, the propaganda says 600/hr, and some claim 1,000/hr...)
If you aren't changing primer size & you have more than one powder dropper, then caliber changes are about 15 minutes, add another 10 for primer size change for the average guy that's done it a few times.
Tool heads aren't cheap, but not stupid expensive either... Caliber change kits aren't cheap by any means, but worth the expense if you change calibers very often at all.
Machine runs about $550, case feeder is wonderful to have, runs about $250 the last time I looked,
Bullet feeder will make you cry! Runs about as much as the press! (For a hunk of plastic without a lifetime warranty!)