What is the .457 Magnum?

The .457 Magnum is a rifle cartridge.

What bullet diameter does the .457 Magnum use?

The .457 Magnum uses a bullet diameter of 0.458 inches.

The .457 Magnum has a Rimmed Straight case type.

The .457 Magnum uses a Large Rifle (.210") primer.

Rifle

Case Type	Rimmed Straight
Primer	Large Rifle (.210")

Dimensions (inches)

Parent Cases

.45-70 Government

Community Load Data

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Powder (name or brand)

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Max MV (fps)

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Cartridges with the same bullet diameter (0.458")