Ok, see the below picture which is straight from RCBS's instruction sheet. As seen below, the die comes with the Expander Ball installed and states it's needed for a "new lot of brass". Then it states in the next sentence the Expander Ball must be replace with the expander that comes in the accessory kit when used with the neck bushing!!!!!

There are not other instructions concerning the above!!!!! So "WHAT" expander do I use? On new brass (never fired), and of course I know what to use on fired brass!

The person I talked to at RCBS was scratching his head!!!!!! After reading what's in the picture, I am sure you will understand my question. There is no other information to go with this explanation.

[img width=600 height=450]http://i957.photobucket.com/albums/ae56/Dennis4437/DSC03856.jpg[/img]