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Discussion Starter · #1 ·
Was at a gun show yesterday and picked up some small rifle primers, 200 of them were "Magnum". Can I use them in the .223 caliber? My powder charge is at the low end of the chart. Do I need to reduce the powder charge?
 

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You will be fine, as a general rule reduce the powder charge data by 10%. There will be nominal pressure differences using magnum primers, as with anything use caution and common sense.
 
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