If there is enough web in your brass, maybe you could just take it off the primer side anyway and recut the pocket with a uniformer? I've jigged up this type of task a bunch of times to use regular handtools and you might check your fit as you may not need to get all the way down to .055. Only thoughts, good luck with it.

Last edited by craigd; 05/09/21 07:30 PM. Reason: spelling