Magnum primers

Discussion in 'Reloading' started by megafatcat, Sep 14, 2009.

  1. megafatcat

    megafatcat New Member

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    May 22, 2009
    Primers are still hard to come by. I have a few hundred large rifle magnum primers that I will not use as I sold that gun. Can I use them in my standard rifle reloads and how much do I need to reduce the powder charge to keep the same pressure, if any?
    Loading for a 7.65 Arg Mauser with H335.

    Thanks.
     


  2. Bullseye Shooter

    Bullseye Shooter Active Member

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    Apr 28, 2008
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    You didn't say if you're running the minimum powder charge for that particular rifle or if you're at max. If at the minimum, I would not change anything when switching to the magnum primer. If you're at max, I would reduce by two full grains and then work back up to your max load. You should not see any real difference in the two, but it pays to be cautious.
     
  3. MadMo44Mag

    MadMo44Mag TGT Addict

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    Jan 23, 2009
    Ft.Worth
    +1 - be safe!
     
  4. megafatcat

    megafatcat New Member

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    May 22, 2009
    I never go more than 1/2 way between min and max. I worry too much, it is after all made in 1891 and I am forming my own cases out of mixed 30-06 brass picked off the ground at the range. Thanks for the advice.
     

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