I ordered a couple new parts for my '79 RSA from SGW and set about to instal them yesterday. I hadn't disassembled my pistol for several years and I recalled that at least once I had a devil of a time getting the bottom lock assembly out of the barrel hole.
Well, it happened again to me last evening and I finally called it a night about 11 pm. This morning I decided it was going to come out. I locked the pistol in a padded vice and pulled out the big force. A proper sized punch and a light hammer. It took several hard raps, but eventually I saw the pin starting to retreat down the hole. A couple more wacks and it dropped out.
The obstacle was quickly identified, and I don't know how anyone (unless it had already happened to them before.) would have figured it out, or how the problem could be resolved.
The bottom hinge pin had drifted out about an 1/8 of an inch to the right side. That pin was catching on the inside of the frame and not allowing the barrel pin to drop out. The pin made a notch on the inside of the frame when the pin was finally driven by.
The pin was unscathed.
I preened the pin so that occurrence would not happen again. Next item of business was to preen the frame and do a little dremel work to repair the ding in the side of the frame. Not perfect, but not too noticeable either.
Now, to install the new Clark trigger, firing pin and and extractor. I hope I don't have any more surprises.