Im having problems with my ruger, both failure to feed and stove pipes. It dosent seem like I can even get through a 10rd mag anymore without several jams. I have been using Win Wildcats in this rifle since I bought it 5 years ago, and have never had problems before. A friend recomended a Volquarsten extractor, would this fix the problem? The extractor looks fine on mine and it ejects shells several feet so I dont see how it would help. The Wildcats work fine in my Ruger MK3. I cant figure it out. Thanks for any help.