308 Norma brass ND to 7mm Rem mag???

Discussion in 'Reloading' started by noneck180, Apr 3, 2011.

  1. noneck180

    noneck180 Well-Known Member

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    Hello,

    I have a good line on some 308 Norma brass, can anyone tell me if it would be much trouble to neck them down to 7mm rem mag? I realize you can neck 7mm rem mag up and 264 win or neck down 338 win. I have been looking at the case dimensions and they are quite similar, with the Norm being slightly longer.

    Thanx
     
  2. Kiwi Greg

    Kiwi Greg Well-Known Member

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    ?????

    Do you mean 308 Norma Magnum brass ?

    Or 308 Norma brass down to 7-08 ?
     

  3. noneck180

    noneck180 Well-Known Member

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    Give me a little credit here..:rolleyes: Magnum.
     
  4. Stonewall2

    Stonewall2 Well-Known Member

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    If you are going to do this run the cases thru a .338 Win . f.l. first to start to form the shoulder.
    Then run thru a 7 mm Rem die .

    Don't set the shoulder back more than .002 from your chamber.
    Measure this with a gauge when setting up the dies.
    Use a case fired a few times for a standard.

    When Norma makes the cases in the process they are reamed inside the neck.
    So if you form to a slightly shorter case a step will be apparent on the outside of that neck.
    Anneal this area with a candle and then run thru the 7 mm fl die again .

    Then lightly neck turn to aprox. .0125. and trim to length.

    This is best done on un fired brass.

    Glenn
     
  5. noneck180

    noneck180 Well-Known Member

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    Thank-you Stonewall, I have decided it is too much trouble for the little saved in money.:) Norma is gooood brass though.
     
  6. sportsman977

    sportsman977 New Member

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    Feb 6, 2014
    I need some 308 norma mag brass and Im willing to trade for some 7mm Mag brasslet me know sportsman977@live.com anyone who has or knows where some norma 308mag brass is please get with me Thanks
     
  7. Jud96

    Jud96 Well-Known Member

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    You can easily make .308 Norma brass out of .300 Winchester.