First post here. I have an odl Stevens 322a project rifle with extraction issues. The rifle came without the extractor, plunger and spring. Ten minutes netted me the new parts from Numrich and they installed with no problem. The issues I'm running into are that with the new extractor installed the action is EXTREMELY stiff when chambering a round. My other 322a is like butter compared to this one with the new extractor and in comparing the parts the extractors have a slightly different shape on the lower front edge. Are these fitted to specific guns? Do they need time to break in? I wouldn't worry except that the new extractor is chewing up my brass and hornet brass isnt cheap or long lasting. Any ideas?