I recently bought a S&W 27 , 5" barrel . I wanted the action smoothed out . It went to an old time gunsmith . I said that I didn't want a " hair trigger " nor a light action . That I used CCI primers . He did a wonderful job removing the " grittiness " . I cost me $50 . Am I going to try and do what he did and for $50 ? NO way ! I've seen too many " bubba " trigger jobs that needed professional repair . Regards Paul