Have you ever done a real bone head move?
I made up a couple dummy rounds. I couldn't get them to crimp in the Redding dies. Then today the light bulb came on. I had two cases where my cutter slipped and they were too short. Those were the ones I used for the dummy(refers to me as well) rounds. My Redding dies crimp great with the right length of case!
I guess everyone is entitled to be a dumb (insert favorite noun) once in a while.