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I think the .45acp is military competition ammo. The picture of the case bottom/headstamp is too blurry for me to read, but think the year made would be stamped on the bottom, such as RA "##" for the manufacturer and year? Anyway, no expert but these guys talk about similar at the link~
Match 1965 45 cal Ball M1911 Lot RA 5053 - Shooters Forum

You may also be able to search for headstamp history or cartridge guide/ID online, I've seen various sites on them before poking around.
 
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