Yes, just general grittiness. It's the interface between the bolt head and action on the tang end. It smooths up about an inch or so before going into battery and locks up tight and smooth when closing the bolt. I don't believe it affects function or accuracy in a negative way, I am just particular about things and want it to run smooth like my older one. So, to polish, would a Dremel with a cloth buffing wheel and Mothers wheel polish (the same way I do all my trigger contact surfaces on a new gun) be the appropriate tool?
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