...LEE FACTORY crimp dies.

The carbide (Handgun) series use another carbide ring (like in a sizing die) and an adjustable crimp on top: these can be roll-type for revolvers or a taper type for pistol (i.e., 9mm, 40 S&W, 380 ACP, 45 ACP, etc.). This pretty much insures these reloads will chamber if the OAL is appropriate for the bullet used.

They also offer collet-style crimp dies for rifle and SOME handgun calibers. I have these for 357 SIG, 44 & 45 calibers. These uniformly compress the rim and I have found to be excellent for plated bullets (range loads vs. FULL BORE HUNTING LOADS) in these calibers. For the heavy load you may want the heavy roll crimp.

They have one for 357 MAG as well: SKU# 90813. Got to check if I don't already have one of these!

CHEERS!