I have a Remington Action with one piece scope mounts that is going in for bluing a new Barrel is ready for threading. The previous owner used some kind of lock tight, I have heated it with my propane torch and the screws won't budge. the guy used slotted screws and he destroyed the slots. the screws are hardend its a cluster @##$# have you ever had this problem? I don't have a bridgport mill to do this job I wish I did.