Carbide dies oversize 9mm a little, then when you seat a bullet you end up with a "wasp waist" or "hourglass" shape. Don't worry about that as long as they chamber OK.
Here's the directions for setting the seating die to crimp at the same time:
- Setting up the resizing die and the case mouth expanding die are easy, so I'll skip that.
- Resize 2 empty cases. Set one aside, and expand the case mouth on the other one.
- With the expanded case in the shellholder, adjust the seating die until if just touches the top of the case when the ram is fully extended. Tighten down the lock ring. Now put a bullet in the case and play with the bullet seating knob until you get the bullet seated right where you want it. Set the seated and uncrimped case aside and fetch the empty resized case.
- Loosen the lock nut. Screw down the die until it is *snug* against the mouth of the case (remember, you didn't expand this case) Tighten the locknut and you have the crimp adjusted. Back off the seating nut a half a turn or so because it is now set too tight. Don't worry, it's easy to set it back...
- Put the case with the seated and uncrimped bullet in the shellholder and cycle the press. Take it out and look at it; you should have a perfectly crimped bullet. Put it back in the shellholder and run it up again, and tighten the seating knob until it is snug against the bullet. Now you have both the crimp and the bullet seat adjusted.
It's a lot faster and easier todo than it sounds.