What is the .338 Whisper?

The .338 Whisper is a wildcat rifle cartridge in the JDJ cartridges family, introduced in 1992.

What bullet diameter does the .338 Whisper use?

The .338 Whisper uses a bullet diameter of 0.338 inches.

The .338 Whisper has a Rimless, Bottlenecked case type.

The .338 Whisper uses a Small rifle (.175") primer.

The JDJ cartridges family includes the .338 Whisper and other related cartridges. Browse the full family on OpenCartridge.

Rifle Wildcat

Dimensions (inches)

Parent Cases

7mm BR

Community Load Data

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Bullet Type

Powder (name or brand)

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Max MV (fps)

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