If you haven't shot a lot of rounds thru it and haven't polished the bore, it may very well take some more shooting for the barrel to break in, my 223 UV started shooting good somewhere around 80 rounds, but that was after polishing the bore, it might take upwards of 200 rounds for a barrel to shoot good just by shooting. So I wouldn't do anything permanent until the bore is well broke in, as you may be undoing what changes you make.
Tim