Re: loading .40 sw
Get you a set of Lee Carbide dies with the Factory Crimp Die. This die will taper crimp but it also makes sure that the whole case is within specks. I use the Lee Factory Crimp die on all my semi-auto ammo and all the malfunctions have gone away. The Lee dies cost less also and are just a good as any other makers plus they stand behind what they sale. With the 40 S&W be sure and check the web of the cases. Most pistols do not have a fully supported chamber and they will bulge at the web and after a couple of reloads it can be weak and crack and or you can have a blow out.
Hodgdon Longshot seems to be about the best powder for full velocity loads.