.340 Weatherby Magnum

Factory ammunition pushes a 250 grain bullet to 2,940-2,950 fps. 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 250 gr. Spire Point and 250 gr. Weatherby has also expanded their factory loads including Nosler Ballistic-tip and Barnes TSX bullets complementing 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. In field tests the.340 clearly outperforms the 300 Ultra mag,.338 Win mag, and even rivals the larger.375 H&H, providing a much flatter-shooting and harder-hitting performance. This cartridge is suitable for most African game as well.

• Name —.340 Weatherby Magnum • Origin — United States • Type — Rifle • Designer — Roy Weatherby • Design Date — 1962 • Manufacturer — Weatherby • Production Date — 1963 to present • Parent —.300 H&H Magnum, full length • Case Type — Rimless, bottlenecked with venturi shoulder • Bullet —.338 • Neck —.366 • Shoulder —.495 • Base —.513 • Rim Dia —.530 • Rim Thick —.048 • Case Length — 2.82 • Length — 3.6 • Case Capacity — 98 • Primer — large rifle magnum • Bw1 — 200 • Btype1 — SP • Vel1 — 3221 • En1 — 4607 • Bw2 — 225 • Btype2 — SP • Vel2 — 3066 • En2 — 4696 • Bw3 — 250 • Btype3 — SP • Vel3 — 2963 • En3 — 4873 • Balsrc — Weatherby