What is the .270 Durham Mag?

The .270 Durham Mag is a wildcat rifle cartridge.

What bullet diameter does the .270 Durham Mag use?

The .270 Durham Mag uses a bullet diameter of 0.277 inches.

The .270 Durham Mag uses a Large Rifle (.210") primer.

Rifle Wildcat

Primer	Large Rifle (.210")

Dimensions (inches)

Bullet Ø	0.277

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Cartridges with the same bullet diameter (0.277")