Second trip to the range now, and have had multiple failure to extract problems. When looking at the cases, the Extractor looks as if it is grabbing the rim midway without getting into the groove above the rim? It is a parkerized version and MAYBE the coating got where it should not have. I have been breaking it in on American Eagle (RED BOX) FMJ. Do you think the extractor is not grabbing or is the gun a dud and needs to be sent back to the factory for quality Dremiling?