The 7x57 came before the 8x57.
The Americans and Brits were used to test the 7x57 performance in Cuba and the SA velds pre 1900.
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The 7x57 came before the 8x57.
The Americans and Brits were used to test the 7x57 performance in Cuba and the SA velds pre 1900.
Sent from my iPhone using Tapatalk
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