Hello, I was recently givin a old Winchester 150 .22 that is in rough shape. Has rust, needs rebluing and will not fire a round. I want to get it firing before I spend money on the finish of the gun. Anyway have verified my firing pin is broken, and I beleive my extractor spring is broken/missing. I have driven out the two metal pins in the bolt. But it will no seperate to get at the extractor? Any help is appreciated! How do you split this?