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Thread: Cleaning Solvents & the Chrome Barrel

  1. #1
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    Cleaning Solvents & the Chrome Barrel

    I've been reading alot about cleaning solvents and the chrome lined barrel. I've used "Hoppe's Benchrest #9" for years and before that plain old "#9". I've also used "Butches" which cleans the copper out of a Glock barrel very quickly.

    It appears the above listed solvents can damage the underlayer of copper below the hard chrome if a hairline seperation occures.

    My question is what is the safest cleaning solvent for the chrome lined AR barrel that is still very a effective cleaning solvent??????

  2. #2
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    There is no underlayer of copper in Hard Chrome.

    That is used in flash chroming only.

  3. #3
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    Thanks Heavy Metal,

    Now atleast I know I'm good to go with Butches or Hoppes

  4. #4
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    I've been told, that the ammonia in some solvents, like Sweets7.62 can damage the chrome lining if left to sit to long.

    Can anyone confirm that?

    Bob

  5. #5
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    Yes, that's true. Ammonia does have a catalytic reaction with chromium, so it shouldn't be left to "soak" in a chrome bore.

  6. #6
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    I wonder how many A2 barrels I ruined, whne I thought I knew better.

    Bob

  7. #7
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    Ammonia doesn't help the aluminum parts around the barrel very much, either.

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