Actually i tried to loosen it with two different breech plug wrenches and I still could not get it loose. I cleaned my gun very carefully per TC directions at end of season last year and put anti-seize on the plug. It still got stuck. I also at some problems with rust around the plug and nipple. I spent most of Sunday trying to get everything straightened out. I still haven' t found ammo it likes. I couldn' t find it last year either. The closest group I can get is 2 1/2" to 3" at 100.
By the way my husband at to put the barrel in a vise to break the plug free.