The .243 JS is a rifle cartridge.

What bullet diameter does the .243 JS use?

The .243 JS uses a bullet diameter of 0.243 inches.

.243 JS

Rifle

Dimensions (inches)

Bullet Ø	0.243

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 (0.243")