Check the extractor for damage to it's claw, and also for any dirt accumulated under it. Make sure that it's pivot pin and the mounting hole is not worn.
Make sure that the action smoothly cycles, and that the recoil spring is not encountering friction on the guide rod. Sometimes the guide rod and recoil spring must be replaced.
Is it going completely into battery when the action closes? It's possible that your support for the gun isn't solid enough.
If you just bought it and Cabelas indicated it was in safe shooting condition, ask them to inspect it and make it good.