My problem not obtaining a roll crimp with the Lee FCD was due to not bringing down the case mouth flare enough when seating the bullet. The seating die was not positioned to where it just touched the case mouth (about three turns from touching shall holder).

The case mouth was still flared a bit going into the Lee FCD and the FCD adjustment screw was getting a false indication upon touching the cartridge prior to adjusting the screw for crimping. With the case mouth not properly brought down by the seating die (but not to the extent of crimping) I had to do three turns for a good roll crimp in the FCD.

With the flare brought down in the seating down correctly, I'm getting a nice roll crimp with 1 1/4 turn of the Lee FCD.

New to the Lee FCD. In the past I would just seat and crimp in my RCBS die in one pass.