The Dillon SDB is listed as a "Square Deal B Auto-Indexing Reloader" and also as a "4 Station Progressive Loader ". Straight from Dillon, yes I have a SDB. And the shell plate does rotate on its own with every pull of the handle.
pro·gres·sive
/prəˈgresiv/
adjective: progressive
1. happening or developing gradually or in stages; proceeding step by step.
"a progressive decline in popularity"
synonyms: continuing, continuous, increasing, growing, developing, ongoing, accelerating, escalating;
automatic indexing
The procedure for determining the orientation and position of a workpiece with respect to an automatically controlled machine, such as a robot manipulator, that is to perform an operation on it.
Many of the reloading presses are progressive, but not all are auto-index capable.
The Dillon SDB does both, so yes there are more reloading presses out there that have auto index capability.
:banghead: