7mm WSM brass

Discussion in 'Reloading' started by swpc629, Dec 31, 2009.

  1. swpc629

    swpc629 Well-Known Member

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    Does anyone have an opinion on whether you can resize 270 wsm and 300 wsm brass to 7mm wsm brass? I know there is a different headspace for the 7mm than that of the 270 and 300.
     
  2. dirtball

    dirtball Well-Known Member

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    If you are resizing 270/300 WSM brass because you cant find 7 WSM brass and are going to fire them in a standard 7 WSM chamber then use the 300 WSM brass and only size the neck down to where you have a snug fit when closing the bolt, leaving part of the 30 cal neck as a false shoulder.
    Dave
     

  3. geargrinder

    geargrinder Well-Known Member

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    I use the 270 brass. I'll neck up to 30 cal. Then size to 7mm leaving the false shoulder.

    I use the 270 brass because my chamber neck is on the small side and I don't want to turn thick necks.

    I'm also using Norma brass. I don't think it would be worth the trouble for factory brass.
     
  4. 4bycamper

    4bycamper Well-Known Member

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  5. dirtball

    dirtball Well-Known Member

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    Powder Valley has Winchester 7WSM brass in stock.
    Dave
     
  6. txsendero

    txsendero Well-Known Member

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  7. J E Custom

    J E Custom Well-Known Member

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    +1

    If I were going to size from 300 wsm it would have to be the lapua brass, and they don't
    make it so I use the Winchester 7mm WSM and have no complaints.

    I can weight sort the Winchester and end up with matched brass a lot cheaper that
    has the right case head stamp on it.

    Norma makes good brass but they are proud of it.(twice as much as the Win or Rem brass)

    J E CUSTOM