Trying to strip down the bolt on my new (to me) Savage 12 VLP (.204) in order to measure CBTO contact with the lands. Had no trouble removing firing pin but for the life of me I can not even get the retainer pin for the ejector to move at all. I have bent a 1/16" drift punch, a finishing nail and have had zero success with a 1/16th" drill bit. Soaking it in some Kroll overnight but can't figure out why it won't come out.

Any suggestions would be appreciated.

Thanks