Maybe this is normal but I'm not sure so hopefully you can help. I ran a box of standard .280 Remington Core-Lokt through my 280AI this afternoon and noticed that the brass has the shiny ring just forward of the rear of the case. I can also just feel it with my finger nail. I was hoping to reload the cases for my 280AI but now I'm not sure. I am a little worried about too much stretching and case head separation. Any thoughts?

Thanks,

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