ok..heres some observations...i see a broken case in the chamber...
put the barreled action in a freezer over night. and then the case will be easier to get out..
second.
barrel has been changed by someone with less then correct tools...notice the pipe wrench marks on the barrel at the chamber area...i would also check for a cracked receiver while your playing with the rifle BEFORE YOU FIRE IT..
---------- Post added at 06:58 AM ---------- Previous post was at 06:49 AM ----------
other observation...the 7-18 date, doesnt match the serial, however, i cant make out whats above the bomb marking on the barrel, id bet its a W {Winchester} is the a VP in a circle on the barrel? if so, that would tell me for sure...
Winchester barrels, are known for over and undersized chambers...