I'm just getting into reloading and looking at buying my first sets of dies for 40 S&W, 45 ACP and 9mm. I fire all from automatics (Springfield, Glock, Beretta) respectively. Do I need a crimp die? As I look at sets some have them and some don't. I saw in another post that "some seating dies for pistol calibers taper crimp when you seat them" so when I load these calibers will the taper crimp be enough with a seat die that taper crimps? Or do I need to have a specific crimp die? Not clear on this - please someone educate me, I'm sorry I sound like such a rock ape here but I really want to grasp all the details before I screw this up. Thanks for the help.