The advise you have received is very good and will work.
However, a Lee Factory Crimp Die only costs about ten bucks or so and is well worth the money. I load quite a few 30-30 rounds, and a few years ago finally bought one of the Lee dies. Wonderful! i still use my RCBS dies for sizing and bullet seating. This method is quick, easy, and required no further die adjustment once my bullet seating die was properly set. Just another thought.