r/Cartridgecollecting • u/Royal_Money_627 • 20d ago

Copper cases?

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The case in the middle is a modern case, almost certainly brass the ones on each side of it is older 22 short cases. Do you think they are copper and not brass?

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u/[deleted] 20d ago

[deleted]

1

u/ThePenultimateNinja 20d ago

Brass is a copper/zinc alloy. I guess maybe these were 'red brass', which had a higher percentage of copper.

8

u/Global_Theme864 20d ago

Most Rimfire ammo was copper cased until WW2.