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7 comments

  • Gene248
    Is there a chart with primer charger rates?

    as to which is more powerful in comparison
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  • RobOz
    If changing components you should always back off a bit and work back up. I use magnum primers in loads that call for standard, but I always start low and work my way up.
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  • charliemeyer007
    Some primer are hotter than others and some cases are thicker. I you ran a milder primer in a thinner case you should be good with that data, however a hotter primer in a thicker case could cause serious issues with that same data.

    Start low and work up is a good safe way to go. Often the most accurate loads aren't the hottest. I do more often have the best luck with full or lightly compressed charges in rifle loads. Some cartridges are way more sensitive than others, the 17 Remington is an example.

    http://forums.GunBroker.com/topic.asp?TOPIC_ID=589714
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  • Mobuck
    As mentioned and advised in all the reloading manuals I've read--back off up to 10% (basically start over) when changing major components.
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  • Gene248
    I am going to load a lot of .223 soon. As of now, the only primers I have been able to find locally are BR4 CCI. I am using Winchester 748 powder and nearly all my cases are from military surplus. They are marked FC. None of the loads I can find use this case or primer. I am planning to load up a few rounds at a reduced amount of powder to start. Are the BR4 primers hotter than the standard CCI primers? Are they hotter than a win or Remington primer? Any reply appreciated.
    Thanks
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  • dcs shooters
    The BR means bench rest. They are just more consistent as to burn rate so with the same powder grains you get the best grouping [;)]
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  • Gene248
    Thanks for taking the time to answer my questions.
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