Quote Originally Posted by RC20 View Post
Try to specifically clean the chamber (for the resistance to extract)

I had same issue with my Savage barrels.

After I got the Carbon cleaner 2000 no more problems, no repeat with the replacement barrels.
A good way to clean a chamber and make sure it's smooth is to use a bore mop from a larger caliber that fits the chamber fairly snug. I use a 50 cal bore mop for my .308 and 6.5 Creedmoor. Find section of metal cleaning rod and chuck it in a drill with the bore mop on the end. Some Flitz metal polish on the bore mop and work spinning bore mop into chamber, moving back and forth. I use a nice slow speed and work the mop back and forth for a minute or so. With another mop or a piece of T-Shirt wrapped around a chamber brush I clean out the polish and check with my bore-cam. I also do the same for the neck ares of the chamber only use a patch around a next up caliber brush. The Flitz cleans out carbon from the neck area very nicely.