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Unfortunately the damage to your bolt face, now that the cause is known, and you have ceased using that cause and it won't get worse, is more a cosmetic issue. Still a mighty piss off though. Would...

Not sure if you posted pics of the Winchester 150gr cases (thread now quite long) but I assume from your first posting that those cases showed absolutely no signs of the Hornady issue. In that case,...

Check your bolt face for gas etching - a burn ring corresponding to the primer outer circumference.
Potentially a further complaint at the shop you bought the ammo from.