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Primer seating issue

I am just starting to load 223, brass is clean primer pockets also clean, when installing primer I really have put a lot of force for primer to seat and the result is a dent in the primer. These are primer pockets also cleaned by hand there not military brass.

What am I doing wrong?

Did you change the primer slide over to the one for small primers? What is the specific headstamp you are having problems with?

I discovered quite a number of commercial head stamp .223 brass had a crimped primer. Had the same issue you described, and started looking more carefully at the primer cups. It is really a pain, but I had to inspect every piece. Hornady, Winchester, and Federal brass has produced crimped -in primers from my experience. Separated the crimped stuff, swaged the pocket, and I could tell the difference in the priming effort

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