Rust or Slide Abrasion?

[hal515]

Recently I shot my RIA 1911, and didn't clean it the day of shooting. When I got around to cleaning it I noticed discoloring outside of the chamber. Is this rust or is it the slide just scratching up the metal?

[_TomT_]

Need more light.

[Rgarbarino]

Looks like oxidation to me...

[sd_shooter]

Are you a Frog Lube user?

[jdmacl]

I'm not very familiar with RIA, but most of my guns (Sig, Ruger, S&W M&P) have stainless barrel and/or I have bought stainless drop-in barrels.

What material is your barrel?

Regardless, even stainless does not mean, "rust-free". In any case, looks like it is very light surface, "whateveritis" and should rub out easily. No need to worry!

[hal515]

Are you a Frog Lube user?

No I use ballistol

[hal515]

I'm not very familiar with RIA, but most of my guns (Sig, Ruger, S&W M&P) have stainless barrel and/or I have bought stainless drop-in barrels.

What material is your barrel?

Regardless, even stainless does not mean, "rust-free". In any case, looks like it is very light surface, "whateveritis" and should rub out easily. No need to worry!

4140 Ordinance Steel

[NoHeavyHitter]

That looks like wear from the slide rubbing the barrel during cycling - but can't say for sure as the photo it difficult to read.

[hal515]

Here is another picture with more light.

EDIT: Picture was tiny cause of image quality

https://goo.gl/photos/VDxHeChjpLpB9hrAA

[.45 ACP]

I vote slide wear/blemish.

[tbc]

Both


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[scoobydo]

sure looks like oxidation to me. Very light, but still. Where did you store it?
Are your other guns in the same area ok?

[Cokebottle]

If it was properly cleaned and lubricated at least once, shooting it without cleaning it did not do that.
More damage is done by overcleaning than by undercleaning.

[hal515]

sure looks like oxidation to me. Very light, but still. Where did you store it?
Are your other guns in the same area ok?

I think that might have caused the issue, it was in an area that was near an open window and was not covered by a case or gun sock.

[mag88]

I think it's light oxidation. My RIA barel has the same thing. Took it off with a light rubbing of steel wool and oil.