Titanium nitride isn't carbide. It's a coating that can wear out pretty fast. I have a set for 9mm and I don't like those dies. They leave a pronounced dark coloration on my cases like the coating is coming off on the cases. I have to lube my cases or the friction on the stroke is like breaking a lug nut on a wheel. Somebody gave me those dies and I'm about to chuck them. Notice that no other die maker uses that coating.

I would just invest in a new set of dies and save yourself a lot of grief. No more Hornady dies for me. They're a bullet company and should stick to bullets.

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That's just somebody talkin.