DAL, you did not specify which die manufacture you have, but most carbide resizing dies have a small carbide resizing insert in the very base of the die throat. If you adjust the die so pressure is exerted from the shell holder when you lever the jam, it will most likely crack the carbide insert. Once cracked it is ruined and needs to be replaced. The manufacturer should service and replace the insert but it may or may not be at a cost to you.
If I have understood your situation correctly, it is critical on most carbide dies to leave a small gap between the throat of the sizing die (bottom) and the shell holder. Refer to your die setup instructions for the proper spacing.....Hope this helps.
Best Regards.....
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