Very similar to the 60 from what I can see. Bought it used, took it apart, soaked the bolt and loading mechanism in mineral spirits. Scraped out all the accumulated crud. Blew it out and dried it off. Used a thick carpenter's pencil to graphite the sliding parts/places. It shoots fine, ejects and auto-loads after each shot. My problem is that it won't cock after a shot. I have to manually pull the bolt back which ejects an unfired bullet. Any suggestions?