Some dies sets make it possible for entire reloading with a few dies. Many others might need a fourth die for the taper crimp. Taper crimping, in place of roll crimping, ought to usually be done Along with the 9mm. The down below pics and knowledge are from a brilliant https://9mm-reloading21841.ageeksblog.com/36298480/9mm-reloading-brass-an-overview