Originally Posted by aalf
A thread tap on an extension will work.



Thanks for the suggestion. I wondered about something like a tap of some kind. I find myself wishing for a tool that probably doesn't exist. I'm envisioning something shaped like a cylinder hone with three arms that would be small enough to fit into the remains of the cartridge. It would have a camming action so that when you pulled out on it, it would expand to fit any size cartridge and get enough of a bite to pull the case out.