+1 on the EGW (or Lee) "U" die and a Lee taper crimp die. Those 2 dies have not given me a loading issue in over 15,000 rounds. I don't even case gauge my ammo anymore.
When I first started I tried using the the roll crimp built in the Hornady dies and that was was no bueno. I didn't know better at the time. I'm a believer in separate seat and crimp dies.
From the pictures it sure looks like you are squashing the cases with too much crimp.
The roll crimp may be at play in this scenario from the OP as well. You never want to roll crimp a cartridge that headspaces on the case mouth.