A friend of mine gave me a Remington 33 that was passed down through his family. He gave it to me because it wouldn’t fire. I would love to fix this thing and give it back to him. After tinkering with it the rifle will fire if one pushes forward on the bolt handle while pulling the trigger. The rifle has been cleaned and the firing pin is old but not chipped or flattened. There is a bit of wear on the chamber but no indents. There seems to be a bit of play when the bolt is locked. Any ideas?