I thought you was using a RCBS expander die?
Depends on which way the dies are used.
My original plan was to buy the LEE 4 set dies along with the RCBS Powder Expander and set up the press as follows:
Stage 1 Lee Sizing & De-Cap Die
Stage 2 RCBS Pistol Powder Expander
Stage 3 RCBS Lock-Out Die
Stage 4 Lee Bullet Seat & Feed Die
Stage 5 Lee Factory Crimp Die
Since I though I needed the Lee FCD to ensure all was good at the end.
However in setting it up like this you lose the advantage of having the powder drop (uniflow) in the stage 3 slot which is the fixed slot to the press. Stage 1, 2, 4 and 5 come on a removable plate for fast changes between calibers.
However I'm being told that it is best to set up the press for it's original intention of have stage 3 with the uniflow and thus you only need LEE's 3 die set. So the set up would be like this:
Stage 1 - LEE Carbide Sizer Die
Stage 2 - LEE Powder Through Expander Die
(& use only the expander part since I'm not connecting a powder dropper to this die)
Stage 3 - Uniflow Powder Dropper (FIXED stage)
Stage 4 - RCBS Lock-Out Die
Stage 5 - LEE Bullet Seater Die
Clear as mud now?
It becomes a matter of cost and preference. The LEE 3 dies is less then the 4 die set. More importantly is which way do I set up the stages for quick changes down the road.
See the crossroad I must chose.