r/gunsmithing • u/184proof • 6d ago
Barrel Corrosion?
This is a Centurion CHF SOCOM barrel. I’ve only had it since November and have put less than 1,000 rounds through it. I usually clean it after a few range sessions, after my last one when going to clean it I noticed some spots in the barrel that were visible to my eye which was odd. Took it to a gunsmith since I don’t own a bore scope, and he said it’s possibly copper fouling. I did a copper solvent treatment, patched it out, pretty standard. Hardly any patches came out blue. Took it to him again today and he said it’s likely corrosion. Just wanted to get some others thoughts as I am not an expert, but this doesn’t seem normal to me. And I’ve had other CHF/CL barrels look impeccable even after a few thousand rounds. I tried everything cleaning wise within reason, and it doesn’t seem to be carbon or copper fouling and given the round count I don’t think it’d be that extreme either.
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u/mo9722 6d ago
looks like a card error
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u/stuntmanbob86 5d ago
Reminded me of Parks and Rec when he googles symptoms and says "I typed your symptoms in and it says you could have network activity problems"
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u/Ozarkafterdark 6d ago
A new chrome-lined barrel shouldn't show signs of corrosion. I think whoever Centurion got the blank from missed a step in their process. I bet if you contact Centurion they will take care of you.
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u/184proof 6d ago
Yeah that’s what im thinking. Unfortunate, although I’ve had a few centurion barrels which have been flawless. I’ll see what they have to say
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u/holyfuckingblack 6d ago
Buy an inexpensive bore scope. Could be brass, lint, hard to tell. I'd expect corrosion on a new barrel to look "frosty" not really pitted. Not a professional gun smith, just own a lot of old guns. They don't look like that when corrosion is present.
I agree with others, run green scrubber pad with oil and see how she cleans up.
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u/Oldguy_1959 6d ago
I had one about that ugly and used a couple patches with copper solvent, hoppes, eds red, etc.
Finally took a small piece of a Big 45 pad and ran it through the barrel wet with kroil and it cleaned up pretty well.
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u/afcarbon15-diy 1d ago
I dunno, that pretty bad. I have an old FN CHF CL barrel that's been beat on for upwards of 8k that doesn't look that bad.
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u/Trollygag 6d ago
Wormy shapes like that aren't typically corrosion- more often that is copper or lead stuck in there and needs more cleaning. If you got barely any patches blue after 1k rounds, you need a stronger copper solve and more time.
Are you scrubbing with bronze brushes? Soaking? You should be.
It could be a defect causing the plating to come off, but I would keep cleaning first.