Winchester Model 120

arch308

New member
Help! My brother gave me an old Model 120 that has been laying around his house for many years. I took it apart to clean it as he is terrible about taking care of his guns. Of course it was filthy but no rust. After cleaning & reassembly the bolt won't travel back all the way when pulled by the charging lever. It won't load a shell or lock back like it should when empty. If I remove the spring from the slide the bolt will travel as it should. It acts like the spring is too long.
I've taken it apart several times but can't figure out what I've done wrong.
Any suggestions? All help would be appreciated.
 
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