Remington Ultra Mag headspace guage

Discussion in 'Gunsmithing' started by John Sanner, Nov 19, 2012.

  1. John Sanner

    John Sanner Well-Known Member

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    Jul 4, 2009
    Are the 7mm ultra mag and 300 ultra mag the same. Midway has the go gauge for the 300 but the no go is on backorder. They have a no go in 7mm ultra in stock.
     
  2. KRP

    KRP Well-Known Member

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    591
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    Dec 25, 2007
    The 338 is different, all the others are the same.
     

  3. Hired Gun

    Hired Gun Well-Known Member

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    Apr 21, 2003
    Save your money. No need for anything but the go gauge. Meaasure everything up off the go or simply add scotch tape. Each layer is .002" .004" is the no go.