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Scope Fog

Discussion in 'Gunsmithing and Repairs' started by Karate, Oct 26, 2006.

  1. Karate

    Karate Active Member

    Feb 6, 2003
    I have an old Weaver K14 scope that has some sentimental value...I wnet to buy some scope rings at a local sporting goods store....the salesman told me that the scope was starting to fog...it looks clear to me...but I am no expert I am more of a handgunner than a rifle guy...so what does this mean to me...if it becomes a problem can it be repaired...thanks
  2. mrmeval

    mrmeval Participating Member

    Oct 2, 2004
    Greenwood, Indiana
  3. GeorgeR

    GeorgeR Member

    Dec 19, 2005
    Boca Raton, FL
    Fog Eliminator

    Hi. I do a lot of water/fire damaged guns and scopes and here's what has worked for me with fogged scopes...I unscrew the eyepiece end of the scope until I find a small hole at the top. This is the nitrogen filling port. I have a small can of nitrogen ( I use Wine Preserver from Private Preserve in Napa CA) I can also use the elevation screw hole. I squirt in about 4 seconds worth of Nitrogen. This displaces the air and pretty much eliminates fogging.
    All this being said, if you can't see fogging now, don't do anything.

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