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Thread: Difference between boxer and berdan primer

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    Default Difference between boxer and berdan primer

    This question is starting to come up more and more as people continue to buy more bulk ammo. Here is the answer to the difference between boxer and berdan primers.


    Berdan primers have the anvil located in the center of the primer pocket and have either 2 or 3 peripherally located flash holes in the primer pocket.

    A Boxer primer has the anvil located within the primer cup. The brass has a central flash hole inside of its primer pocket through which the flame from the primer travels.

    A Berdan primer does not have an anvil located in the primer cup. The anvil that the pellet is crushed against is located inside cartridge's primer pocket with flash holes on either side to allow the flame to propogate through.

    Both types of cartridges (berdan and boxer primed) are reloadable and you can purchase primers for either. The Berdan is, for obvious geometric reasons, more difficult to reload on a standard press. However, there is no reason that they cannot be reloaded if you so choose.

    Here is a comparison of the primers:

    http://www.three-peaks.net/berdan.jpg

    Note: the type of primer is not always indicative of corrosive or non-corrosive powders.
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    Default Re: Difference between boxer and berdan primer

    Good luck finding berdan primers in the US. A buddy of mine loaded several thousand a while back, with primers he picked up several years ago. Berdan primers just aren't available here anymore.
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    Default Re: Difference between boxer and berdan primer

    yeah and they are very hard to reload anyways (to the point they are not worth it). Just an informational post.
    For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places. Eph 6:12 KJV

    'Bury me on my face,' said Diogenes and when he was asked why, he replied, 'Because in a little while everything will be turned upside down.' Laertius Diogenes

    If Tyranny and Oppression come to this land, it will be in the guise of fighting a foreign enemy. James Madison

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    Default Re: Difference between boxer and berdan primer

    Is there any reason that there are 2 types of primers? Is one supposed to be superior over the other?
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    Default Re: Difference between boxer and berdan primer

    Boxer primers were invented by a Brit, and Berdan primers by an American. Go figure...

    I don't see any advantage of one over another other than reloading difficulties and component availability of Berdans.

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    Default Re: Difference between boxer and berdan primer

    I thought that cases that used berdan primers were not reloadable.

    I could be wrong but the bottom of the case inside looks different.

    E-A

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    Default Re: Difference between boxer and berdan primer

    "Great eagles fly alone, great lions hunt alone, great souls walk alone - alone with God." Leonard Ravenhill

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