Originally Posted by
rmantoo
Tons of commercial processors turn 5.56 into 300blackout on dillon 1050s like this. For that matter, lots of them reform bunches of calibers into others like this.
I turn 7.63x39 into 6.5 grendel (not commercial, just for me) using an automated 1050 (mark 7 pro). First, I dump 7.62x39 cases into the feeder and spray liberally with case lube, then hit the "Start" button: Position 1: decap/full length size w/7.62x39 die, Position 2 and 3 blank (normally swage and primer insertion), Position 4 size neck down to 7mm, Position 5 size neck down to 6.5mm.
I'm about to build a 6mm grendel, and will simply add a 6mm die to Position 6.
When using a turret press, I go directly from 7.62 to 6.5, but since I have the space on the 1050 toolhead, I do it in 2 steps to avoid the 1:100 or so times the 1.62mm size drop pushes neck into the shoulder.
No reason you couldn't do it easily on your 2000.