What is the .500/450 Mag Express?

The .500/450 Mag Express is a rifle cartridge, introduced in 1879.

What bullet diameter does the .500/450 Mag Express use?

The .500/450 Mag Express uses a bullet diameter of 0.458 inches.

The .500/450 Mag Express has a Rimmed Bottlenecked case type.

The .500/450 Mag Express uses a .254/K-40 primer.

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Cartridges with the same bullet diameter (0.458")