These photos are of once-fired Lapua .22-250 brass. I loaded them a few years ago with 35 grains of 2208 and 55 grain TSXs. Something was wrong. Difficult bolt lift and speeds over 3700fps. A new barrel had recently been installed. I took the rifle to another gunsmith, and he could immediately tell, using his gauges, that the headspace was wrong. He fixed the problem and it has been going well since then. Today I went to get these brass pieces to reload, but aside from flattish primers (understandable) I noticed a ring that I don’t recall being on the new brass. I’m wondering what this means and if the brass is safe to reuse?