If you do not use an expander ball or if it is a bushing die, you may be able to remover the entire decapping pin assembly from the top of the die. If you can, do so. Then, provided you are using a decent press, leave the die screwed into the press, take a steel rod and put it thru the top of the die all the way down to the bottom of the case and whack the end of the rod with a hammer. Should come right out. No promises that it will not fuck up the die threads or the threading on the press, but it worked just fine with an old rock chucker and redding bushing dies.