My friend got a new 2000 CVA Eclipse Muzzleloader for his birthday a couple years ago. He only shot it once and put it away. He decided he wants to use it for deer season this year. I'm trying to help him get it ready and convert to 209 for use with pellets. The problem is I can't get the original breech plug out. It is definately siezed. Any secrets, suggestions, tricks or spells to put on it to get it out? Any and all helpful suggestions greatly appreciated. Thanks in advance.