Just and I mean Just found this Loose barrel for sale. Ending very soon, as in under 1 hour. I'm considering to replacement a Blue Sky BA barrel that swallows a M2 round to beyond brass and causing major swelling / bulging of the spent case, so chamber definitely wobbled out.
Look at these 2 pictures. Any opinions as to how these scars appeared.
My first thought was aggressive use of a jointed cleaning rod, but I'm not sure the more I look.

Opinions on these Scars and if they'd affect accuracy. This Barrel measures a 2 on a CMPicon Gage.

Thx,

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