Took my wife's model 70 out to check the scope on it before the Christmas hunt starts and had a problem. It wouldn't extract the empty shell. Hers is a newer one with the control round feed. The extractor claw moves back and forth freely. I should have paid more attention to how it worked, then maybe I would have a better idea of how the mechanism operated. I was wondering if this could be a home fix or something I will have to send in?