Zero failures to extract with ammo that is greasy and well lubed to the touch like SK. A decent amount of failure to extract with ammo that’s not greasy like cci sv. Is there something I can lube these with that will I’m guessing get me to no extraction issues with them also. I have cleaned the chamber a couple times extremely well thinking it may be the issue but doesn’t seem to change things. Using the Sk standard plus for matches but I have lots of cci sv to practice with but this issue is driving me mad. Thanks for suggestions.