Barrel coatings

Discussion in 'Gunsmithing' started by lightfoot, Nov 25, 2013.

  1. lightfoot

    lightfoot New Member

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    Oct 16, 2013
    Has anyone ever heard of coating the inside of a rifle barrel with titanium nitride?
     
  2. Hired Gun

    Hired Gun Well-Known Member

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    No.

    No barrel maker approves any coating on the inside of a barrel.
     

  3. WapitiBob

    WapitiBob Well-Known Member

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    TIN used to be the thing way back but it doesn't wear for beans, much better coatings for tooling now.
     
  4. Sully2

    Sully2 Well-Known Member

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    Chromium..! Harder than hell and they even line cannon barrels with it.
     
  5. WhiteRiver

    WhiteRiver Well-Known Member

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    Some companies use a salt bath nitride for the entire barrel. The benefit is that it draws the carbon up to the surface and hardens the steel at a molecular level down to several thousands below the surface. It provides an extremely hard surface and wears quite well. It also stress relieves the steel at the same time as the bath is kept above 1000 degrees F.
     
  6. Hired Gun

    Hired Gun Well-Known Member

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    I meant once it's done. If they are to be chromed I believe thy do that before they are sent to the end customer.