Like others have suggested, I have always set my seater/crimp die by eye. I seat the bullet so that there is approx. .005" between the end of the case and the top of the bullet's crimp groove. I back the seating stem off and screw the die down until the crimp looks good and then run the seater stem down till it touches the bullet. Seat a few and inspect, adjust as necessary and you're good to go. After you make your final setting, check to see if a round will chamber in your gun.
Last edited by gunswizard; 07/29/15.
