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Factory Ammo Powder Weight consistency?

Discussion in 'Handloading and Reloading' started by BBDartCA, Sep 5, 2011.

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  1. BBDartCA

    BBDartCA Member

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    Jul 7, 2011
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    Has anybody ever looked into the variability in charge weight for a given box of factory ammo? Would be curious to know what kind of % weight variance typically seen over 20 to 100 rounds.
     
  2. mikeadams

    mikeadams Member

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    Sep 8, 2010
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    OKC, OK
    I actually did this last weekend. I am pulling a large lot of steel case factory ammo for a friend, and when I started, for the first 20 rounds I weighed the powder to see what it was. Surprisingly enough, the powder weight was pretty much bang-on for every round - no variance to speak of. This particular lot was 45 Auto and weighed on an RCBS 505..

    You didn't specify caliber or manufacturer, so YMMV.
     
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