Korean war 30-06 manufacturers

Hi everyone, who manufactured 30-06 M2 ball for the US army during the Korean War? I saw a lot of Lake City and St. Louis ammo online but anything else, I’m particularly interested in companies (WRA, WCC…) and foreign manufacturers, thanks

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Here is a hint, from the date list for adoption of non-corrosive primers by the U.S.-

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Thank you!