The .340 Weatherby Magnum is a high-performance rifle cartridge introduced by Weatherby in 1963. It is based on the .300 Weatherby Magnum case, necked up to accept .338 caliber bullets. Known for its flat trajectory and impressive energy retention, the .340 Weatherby Magnum is well-regarded among big game hunters. It is particularly suitable for hunting large and dangerous game such as elk, moose, and bear, offering significant stopping power and long-range accuracy.
The cartridge typically fires bullets ranging from 200 to 275 grains, with muzzle velocities often exceeding 3,000 feet per second, depending on the load. This high velocity translates to excellent downrange performance and energy, making it effective at long distances. However, the significant recoil can be challenging for some shooters.
The .340 Weatherby Magnum is best utilized in robust, well-built rifles designed to handle its high pressures and recoil. It is primarily used in hunting scenarios rather than target shooting due to the expense and power of the ammunition.