Kyle3,
Only hand-tighten next time.
After a lot of years trying to figure this breech plug thing out and talking to a lot of people that know a lot more than I - gun smiths that deal with this problem every hunting season, we, they, I have come to the following conclusion, starting with the thought above.
Kyle you might want to be careful if you follow this thought. The face of breech plup is designed to mate with the barrel flange at the end of the breech. This is where the gas and pressured is supposed to be stopped from blowing back into to the breeck area. If this seal occurs as designed then blow back into the threads of the breech will be very minimal if not eliminated. This blow back is what causes the breech plug threads to seal itself to the walls of the breech. If you seal with grease or if you seal this area with Teflon tape you should really try to get a seal. In my mind hand tightening will not reliably get this seal. Now I am not saying to tighten it up really tight but I really believe snug is better than loose. With the tape I try to tighten it to the point that the tape is compressed at the seal not torn or cut, and then I never touch the plug again till I am done shooting - I do not want to disturb that seal. Again this is my method and it works for me and several others but you will need to find one you have confidence in, but frozen breech plugs should not be a problem any longer even with heavy loads of t7.
Just my 2 cents... not saying that t7 would say anything that he doesn't believe.