I want to get back in to flinting to get more time in the field with my grandson! A few years ago i tried to change my 50 cal from flint to percussion as i couldnt get any spark from the frizzen! someone told me all the hardness was gone from the frizzen from over shooting!The lock fit the stock just fine the breech plug was a different size. now the breech plug dosent seem to match up anymore. Is it possible i twisted it? Could there possibly been a spacer in there that i didnt see when i dis assembled it?