I am not sure that I can help you, but the plating used in plated bullets is very thin and quite a bit softer then the standard FMJ jackets. If you are really concerned about your bores, you might want to switch over to lead (swaged or cast)bullets. I am using lead in my 30Luger reloads, and they are working better for me than the FMJ that I was using before.....Just a thought.
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