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.357 mag primer question

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6 comments

  • mrbruce
    You should have no problems with standard primers if I'm reading this right...
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  • dcs shooters
    I've always just used small standard primers in mine. Never seen the need for mags.
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  • wcoxy2003
    thx guys. the hodgon reloading data called for spm. and then i called dillion reloading and they told me the same as you. thx again
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  • bpost
    Some powders used in large quantities may be a bit more consistent with magnum primers. I use federal standard sm pistol primes in loads using unique, 231, blue Dot and other relatively fast powders. When loading heavy charges of ball powder or 2400 I will use a magnum primer.

    I have plans on doing a lot of chronograph testing this summer on just that issue; primers, mag vs standard, rifle and pistol. I will post the results as soon as I get all the testing done.
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  • Dumpster Baby
    If the loading data for a particular powder says to use a magnum primer, use them. I violated that rule once and got some squibs that left a bullet lodged in my barrel. Good thing I wasn't gangsta firing at the time.
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  • wcoxy2003
    used titegroup and the spp primers worked out alright
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