Try anything you need to, but get the Lee Factory Crimp Die as soon as you can. They are easy to use and it won't buckle your cases even when set for maximum crimp. I use RCBS dies for my 30-30 loading and can tell you from experience that if you put just a tiny bit too much crimp with them you will buckle the case-neck a little and the round will be difficult or impossible to chamber and you will have to pull the bullet and start over with that case. If you go that way, you should trim your cases every time they get resized, no matter what anybody says, so that all cases are exactly the same length, or you will have problems. My RCBS dies are still good, but after getting the Lee crimp die, I have assigned the crimping to it with no desire to look back. Just get the Lee die; you'll be glad you did. Did I forget to mention that they are very inexpensive? Do you need it? Not if you don't need to make your life easier and reduce frustrations over things that should be less tricky. I think I paid like $13.95 for mine at Sportsman's Warehouse.