Originally Posted by Hammer1
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By 1912...

We had the

7 x 57 Mauser
30/06
375 H&H
505 Gibbs...

We had the 10, 12, and 16 gauges...

And the 44 Special, 45 Colt, and 45 ACP...

What can we do now that we couldn't do in 1912 ?
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What can we do now that we couldn't do in 1912? Spend more money to buy new calibers with imaginary capabilities.

The calibers you list will suffice for anything on this planet.