I made a pan primer out of a Deer Antler section.
I did not have the brass threaded adapter to glue into the end of the antler to screw in the primer tip so it is removable.
So, I just put a release agent on the primer tip threads.
Then epoxied it into the antler with JB Weld.
When dried , the brass tip was able to unthread and be removed for refilling the primer tube.