What is the .458 Whisper?

The .458 Whisper is a wildcat rifle cartridge in the JDJ cartridges family, introduced in 1993.

What bullet diameter does the .458 Whisper use?

The .458 Whisper uses a bullet diameter of 0.458 inches.

The .458 Whisper has a Belted, Straight case type.

The .458 Whisper uses a Large Rifle (.210") primer.

The JDJ cartridges family includes the .458 Whisper and other related cartridges. Browse the full family on OpenCartridge.

Rifle Wildcat

Dimensions (inches)

Parent Cases

.458 Winchester Magnum

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Powder (name or brand)

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