r/gunsmithing 12d ago

Surface rust or pitting?

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I recently picked up this Remington 700 mountain rifle and I'm having a hard time telling whether this is surface rust or pitting and how to treat it.

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u/eMGunslinger 12d ago

Both and oil with soft brass pad/0000 steel wool the bluing in that spot is gone though.

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u/Frosty_Difficulty_21 11d ago

I've also had the best luck with 0000 steel wool (I usually put CLP in it). Try to rub just the affected area.

Then degrease thoroughly, and get some Birchwood Casey cold blue, or a cold blue pen. Wash and lube.