Well, they did it again. I just picked up a set of RCBS 45 colt dies. Turns out they are a very old set, born in 1978. Back then, the decapper was built into die #2, the expander die. That won’t work on a progressive press.
I called RCBS and the nice gentleman was very accommodating. He immediately sent out, at no charge, a new decap Assy, bushing and lock nut that can be installed in die #1. Then I remove the decap pin from die #2 and things will work fine on a progressive.
Thank you very much RCBS!
Sam Sackett