Dillon 1200b with size die

[Ryano]

I'm planning on trying the Dillon 1200b trimmer with size die for some high volume 223 on my lnl. I want to use a two pass method where I lube/ decap (RCBS lube die), size and trim with the first pass, then tumble to remove lube. Second pass will be with a universal decap ( just to clear flash hole) then powder, hornady seating die, and finally a lee factory crimp.

I have been loading pistol for abour a year now, but this is my first venture with rifle rounds. Will I need any additional sizing beyond what the dillon size die does at the trim station? Also, the hornady seating die says it includes a roll crimp. Is it possible to use the die to seat without having the roll crimp? I would prefer to use the lee factory crimp instead.

 

[EddieNFL]

The Dillon trim die has no means of expending the neck. Unless it sizes just right (mine did not), you will need to run an expander through the neck. I used a Sinclair mandrel die.

Yes, you can use a seater die without crimping. Turn the die down until you feel the crimper touch the case mouth and back off a half-turn.

Not a fan of the FCD. Depending on what you are loading for what, a crimp may be unnecessary.

Good luck.