The decapper pin in the 50 BMG Resizing die is pulled into a tapered hole when the nut on top of the pin is tightened. The pin is not screwed into the die. To remove the pin, loosen the nut. Unscrew it to a point where it is flush with the top of the pin. With the die in the press frame, take a hammer and hit the nut and pin squarely. That should break it loose. Remove the nut, take out the pin.
