re: "The only advantage the 650 has is the auto indexing"
another 650 advantage is the station 3 powder check mechanism....that actually has saved me a number of times from a charge-weight issue;
further (I am NOT a shill for Dillon) advantage on 650 is being able to choose station 4 bullet seating and station 5 crimp die.....I actually found I prefer to use the Lee FCD for autoloader cases that solves a number of issues.
The other 2 aspects of Dillon-ANYTHING are 1) brilliant design and 2) exquisite tech support.
Yes, I'm biased to the Blue. After 30+ years they continue to treat me RIGHT.
Just a few days ago, an old buddy of mine wanted to load some 45 ACP. As a long time bullet caster & very skilled as a single stage press user, he came over for a look at how the 650 works.
We managed to introduce him to the process, and HE enjoyably loaded 500 in a couple hours before lunch break. He was almost giddy with that production. Many rounds had been checked for OAL and case gauge along with charge weight, just to confirm what seemed like "too easy".
After lunch we ran another 500. In the middle, there was a break down, which would have stopped me cold, except I had a spare on hand....the 'index ring' which advances the shell plate, providing the "self indexing" part of the process. It is literally the most demanding part of any repair I've ever needed to do on my 650.
I showed him what had to be done; we dismounted the necessary parts, and HE actually installed the 'index ring SPRING' on his very first try!!!!
I awarded him a "Field Commission 650 Mechanic" status and told him there wasn't any more demanding procedure than that, so he was ready for full operational command.
Even including the time for the repair, he finished the last 500 rounds in well under 3 hours after lunch.
Impressive for all of us, and a wonderful day spent with a shooting buddy NOT at the range.