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.340 Weatherby Magnum
The Weatherby Collection
Weatherby announced this cartridge in 1962, and it is based on the .300 Weatherby
Magnum case necked up to accept .338" projectiles.
With Projectiles from 175 to 300 grain, this cartridge produces almost 5,000 foot
pounds of energy and velocities up to 3,250  Feet per Second.
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