.340 Weatherby Magnum
Encyclopedia
The .340 Weatherby Magnum rifle
cartridge
was introduced in 1963 by creator Roy Weatherby
in response to the .338 Winchester Magnum
. The .340 Weatherby Magnum uses the same .338 in. diameter bullets as the .338 Winchester Magnum but it does so at greater velocity than its Winchester competition. Reloaders may have trouble matching the published Weatherby velocities as Weatherby factory ammunition is loaded to maximum specifications. Weatherby no longer loads the 250gr. round-nose Cartridge pictured but continues to load the 250gr. Spire Point and 250gr. Nosler Partition. Weatherby has also expanded their factory loads including Nosler Ballistic-tip and Barnes TSX bullets complimenting the powerful cartridge. Currently A-square is the only other factory ammunition producer of the .340 Weatherby Magnum which has led to limited popularity of the caliber. Those that own the .340 have extreme pride and confidence in the caliber, In field test the .340 clearly out performs the 300 Ultra mag, .338 win mag. and even rivals the larger .375 H&H providing a much flatter shooting harder hitting performance.
This cartridge is powerful enough for even the largest North American game and is suitable for most African game as well
.
Rifle
A rifle is a firearm designed to be fired from the shoulder, with a barrel that has a helical groove or pattern of grooves cut into the barrel walls. The raised areas of the rifling are called "lands," which make contact with the projectile , imparting spin around an axis corresponding to the...
cartridge
Cartridge (firearms)
A cartridge, also called a round, packages the bullet, gunpowder and primer into a single metallic case precisely made to fit the firing chamber of a firearm. The primer is a small charge of impact-sensitive chemical that may be located at the center of the case head or at its rim . Electrically...
was introduced in 1963 by creator Roy Weatherby
Roy Weatherby
Roy E. Weatherby was the founder and owner of Weatherby, Inc., an American rifle, shotgun and cartridge manufacturing company set up in 1945. Weatherby created an entire line of custom cartridges, and was one of the people responsible for the industry interest in high-speed cartridges...
in response to the .338 Winchester Magnum
.338 Winchester Magnum
The .338 Winchester Magnum is a .33 caliber belted rimless bottlenecked cartridge introduced in 1958 by Winchester Repeating Arms Company|Winchester. It is based on the blown out, shortened .375 H&H Magnum. The .33 is the caliber at which medium bore cartridges are considered to begin...
. The .340 Weatherby Magnum uses the same .338 in. diameter bullets as the .338 Winchester Magnum but it does so at greater velocity than its Winchester competition. Reloaders may have trouble matching the published Weatherby velocities as Weatherby factory ammunition is loaded to maximum specifications. Weatherby no longer loads the 250gr. round-nose Cartridge pictured but continues to load the 250gr. Spire Point and 250gr. Nosler Partition. Weatherby has also expanded their factory loads including Nosler Ballistic-tip and Barnes TSX bullets complimenting the powerful cartridge. Currently A-square is the only other factory ammunition producer of the .340 Weatherby Magnum which has led to limited popularity of the caliber. Those that own the .340 have extreme pride and confidence in the caliber, In field test the .340 clearly out performs the 300 Ultra mag, .338 win mag. and even rivals the larger .375 H&H providing a much flatter shooting harder hitting performance.
This cartridge is powerful enough for even the largest North American game and is suitable for most African game as well
.