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Discussion Starter · #1 ·
I deprime and clean brass before reloading and in some miscellaneous .45 brass I found an odd berdan primed what appears to be .45 case. Nothing I have will take picture close up. The base has the following numbers and letters: clockwise from a vertical 57 at 3:00,a horizontal I at 6:00, a vertical 1 at 9:00, and a horizontal SF at 12:00. No big deal just curious what it could be. can anyone help?
 

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If you do a search for berdan primers they will tell you what most of these codes are and where they are made. I had and have more that are Argentine with a date of 1978.
Nothing wrong with them,but if they are old ones i think before 1960 they may be a corrosive type primer .How did you deprime them usually need a different type of die or hydraulic method.And they are not a standard size primer.Should have 2 flash holes inside.Thats about all I can tell you.
 

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Discussion Starter · #4 ·
Berdan Primed 45 auto?

While cleaning old 45 brass of unknown origin I found what appears to be a Berdan primed piece. I manually deprime before cleaning so there was no damage to the depriming pin in the press. Around the base are the letters and numbers as follows: 57,I,1,SF. Not an expert on 45 ammo by any means but this seems kind of odd. Can anyone tell me what it is?
 

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Discussion Starter · #6 ·
Thanks to both of you, the headstamp in the picture is the same as mine except 57 instead of 56. Sorry for the apparent duplications but my posts seem to wind up in cyberspace somewhere I can't find them.
 
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