I seem unable to send photos to this site for some reason, this die even has a 1” cutaway midsection allowing you to have first engaged the case neck with bullet sitting in place. Then while you watch the travel upward you can see the fitted collet ride against the interior of the die, and when the tip of the bullet reaches the fixed cone at the top the sliding collet remains in control of the case neck and bullet to center both simultaneously. It works!

gnoahhh; Right you are, Herters 300Savage die set. I am thinking KRUPP is something brought back from Germany after the war.
This particular 30cal seating die could be used on any 30cal case as best as I can tell, it really works.