Great uncle passed away - my Uncle took the 3 revolvers Uncle Stanley had, told me I could have the "broken" semi auto 22 that would not cock. Took it home, on Ruger website downloaded a manual and dis-assembled it. Anyway, when reassembled it works fine - ran 200 rounds of ammo through it without a problem. Issue though is top is LOOSE! The stop pin comes out, the barrel/reciever falls off the frame. Called Ruger - they emailed me a shipping label, so sent off yesterday to be tightened. Should arrive today, so am waiting to hear what they say when they receive.