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**Unclenick** · January 10, 2011, 11:01 AM

I was assuming it's just the shiny ring around the case from more resizing friction over the pressure ring. Don't think I have a photo handy, but it's common, especially with a military chamber that has some extra width at the breech end.

January 10, 2011, 11:01 AM	#5
Unclenick Staff Join Date: March 4, 2005 Location: Ohio Posts: 21,057	I was assuming it's just the shiny ring around the case from more resizing friction over the pressure ring. Don't think I have a photo handy, but it's common, especially with a military chamber that has some extra width at the breech end. __________________ Gunsite Orange Hat Family Member CMP Certified GSM Master Instructor NRA Certified Rifle Instructor NRA Benefactor Member and Golden Eagle