I am having random extraction issue with my Sako M995 that was a 300 win mag and I had a smith re barrel it and make it 338 RUM. When it was a 300 win I never had this happen. I will put a case into the chamber and it will extract it and every now and then it will not until I cycle the bolt again and then it will grab the case and extracts it. It does not seem to matter if it is new brass or once fired brass and it will do it on fired and un fired cases at random. Do you think I need to put a new extractor kit in it or is there something else I can try like stretching the old springs out on the extractor and plunger I have now? I don’t have a lot of experience with sako extractors so I am looking for some guidance.