Yup, RCBS will take care of you. That is who I would contact first.At one time they put a spare in with the dies.
That will work or better yet contact RCBS and they will send you some free.
I think a berdan case got me.Yes that is the correct pin. I usually keep a 5 pack on hand in my tool box. I have broken a few over the years in my RCBS universal decap die. Sometimes a case with a heavy crimped primer or accidentally trying to decap a berdan primed case will break the pin.
Yes. Look at your broken pin, it’s got a head on it. Older dies have a non-headed pin and were held in with a collet.Is the pin I have from midway correct?