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what powder does Remington use for their 300bk?

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  • what powder does Remington use for their 300bk?

    I pulled the bullets of a couple of their 220gr sub rounds and it was about 10.2gr of something, reload it into a x39 and it fired and lock the bolt back on the mag OK. Would like to make some sub rounds for the x39.
    stoney
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