I have a question about my 30 06 rifle barrel. I don't know all the technical names of the pieces so I'll describe it the best I can. It has to do when I fire a round through it and it won't let me remove the spent brass. The pawl at the bottom that catches the edge of the rim of the casing doesn't seem to drop down far enough. It works fine if I'm taking out an unfired round, but if I shoot the round it hangs up. I've cleaned and oiled everything I can think of and it still does it. I don't see any rough edges either, so I'm at a loss here. If I wait a couple 3 minutes for the casing to cool sometimes seems to help a little, but not always. Its a new barrel with less 20 rounds through it. Anyone have a suggestion on what may be the problem? Thanks! Larry