How do you guys clean Moly coating out of your barrels?

Discussion in 'Long Range Hunting & Shooting' started by WildBillG, Sep 16, 2018.

  1. WildBillG

    WildBillG Well-Known Member

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    As the title says I would like to know the best way to clean moly coating from a rifle barrel. By that I mean that black coating used on bullets. I have 2 guns that have shot moly coated bullets and both seem a little behind in the accuracy department. I have been told that the coating effects the accuracy of uncoated bullets is this true?
     
  2. AZShooter

    AZShooter Well-Known Member

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    I had a long conversation with a scientist at Kitt Peak Observatories (near Tucson) many years ago. He said they use moly as a lubricant on some of the telescope parts. Said if it makes contact with clean steel and there is heat and pressure the moly will bond with the steel. He said only physical means would remove it. I would suggest Rem 40X or JB bore paste.


    I have used moly for decades with no ill effects but in those bores I no longer use "naked" bullets. I suppose you will get your rifle's accuracy back for uncoated bullets after a thorough cleaning with either product.
     
  3. North Idaho Hunter

    North Idaho Hunter Well-Known Member

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    I had similar issues going from nosler silvertip bullets back to uncoated and had accuracy issues.

    butches bore shine got it out for me.
     
  4. Heavyiron

    Heavyiron Well-Known Member LRH Team Member

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    I wonder if the grit impregnated bullets that David Tubb sells would do the trick
     
  5. WildBillG

    WildBillG Well-Known Member

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    I have heard that wipe out and bore cleaners with ammonia in them will remove it as well. How do you know if it is being cleaned out your bore though.
     
  6. WildRose

    WildRose Well-Known Member

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    I would just swab the barrel with some 1200 grit lapping compound firing a few rounds through it, swabbing every two or three rounds.

    Then clean the snot out of it and see what it looks like.
     
    just country and Heavyiron like this.
  7. WildRose

    WildRose Well-Known Member

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    when you no longer see any black on your cleaning patches it's probably gone. You'd have to have a smith run a bore scope through it to be sure.
     
  8. wbm

    wbm Well-Known Member

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    I got into coating with moly when the rage first started. During that time the most usual response to your question was to use Kroil before and after cleaning. Just keep cleaning your barrel as usual and you will get there. Getting moly totally out of a bore is a process not an event.