A few things to check or try,
You may want to check the sizing die is it all the way down to the shell plate if not screw it down further,
The Belling/ powderdrop, is the bell sufficient to allow the bullet to set on top of the case, and slightly in?
You may want to increase the belling slightly very slightly to reduce the pressure needed to seat the bullet.
What is your crimp dimension is it .471 at the case mouth?
If its .472 or .473 you may want to increase the crimp.
You could also try using a little case lube eventhough you dont have to with carbide dies, lube makes life easier.
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