I was shooting my .36 caliber blue ridge rifle today. I have a touch hole liner. with an allen key hole. I cannot get it out and have rounded the hex hole. I am afraid to use an easy out. This may cause me more damage. It is a stainless liner. Is there a problem if I leave it in. There is definitely a chamber at he back of the bore that is smaller than the bore and comnnects to the liner. I normaly take out the liner clean in there wit h a Q tip and use a .22 brush on the end of my ramrod to get the crud out of the chamber. With the liner out I could see how clean it was. I am afraid of not getting out all the crud and having mis fires or hang fires. What do you guys think? What abot rusting in that chamber?