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Data last updated on 2020-12-03 @ 15:07:42pm(EST)

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FIND .340 WBY MAG AMMO AT BEST PRICE

Latest products for .340 wby mag

  • Cabelas Official Nosler Trophy Grade Ammo - .340 Weatherby Magnum for $79.99

.340 WBY MAG AMMO

Browse .340 WBY MAG Ammo For Sale From Top Retailers

.340 Weatherby Magnum rifle cartridge was introduced in 1962 by creator Roy Weatherby to fill the gap between the .300 Weatherby Magnum and the .378 Weatherby Magnum. In response to the .338 Winchester, Magnum released in 1958.

The .340 Weatherby Magnum uses the same .338 in. Diameter bullets as the .338 Winchester Magnum, but it does so at a higher velocity than its Winchester competition.

Reloaders may have trouble matching the published Weatherby velocities as Weatherby factory ammunition is loaded to maximum specifications.

This cartridge is powerful enough for even the most massive North American game and is suitable for most African game as well.

About: .340 Wby Mag

  • Type: Rifle
  • Place of origin: United States
  • Designer: Roy Weatherby
  • Designed: 1962
  • Manufacturer : Weatherby
  • Produced: 1963 to present

Specifications

  • Parent case: .300 H&H Magnum, full length
  • Case type: Rimless, bottlenecked with venturi shoulder
  • Bullet diameter: .338 in (8.6 mm)
  • Neck diameter: .366 in (9.3 mm)
  • Shoulder diameter: .495 in (12.6 mm)
  • Base diameter: .513 in (13.0 mm)
  • Rim diameter : .530 in (13.5 mm)
  • Rim thickness: .048 in (1.2 mm)
  • Case length: 2.82 in (72 mm)
  • Overall length: 3.6 in (91 mm)
  • Case capacity: 98 gr H2O (6.4 cm3)
  • Primer type: Large Rifle Magnum

Ballistic performance

Bullet mass/type Velocity Energy
200 gr (13 g) SP 3,221 ft/s (982 m/s) 4,607 ft⋅lbf (6,246 J)
225 gr (15 g) SP 3,066 ft/s (935 m/s) 4,696 ft⋅lbf (6,367 J)
250 gr (16 g) SP 2,963 ft/s (903 m/s) 4,873 ft⋅lbf (6,607 J)

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