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7mm WBY Mag Ammo

7mm WBY Mag Ammo For Sale From Top Ammo Vendors

The 7 mm Weather by Magnum is a powerful 7 mm rifle cartridge offered by the Weather by firearms company in their Mark V rifles. The cartridge was one of the first cartridges offered by the Weather by company.

It was developed in the 1940s by Roy Weather by. The more popular 7mm Remington Magnum was introduced in 1962 with very similar ballistics when compared to the 7mm Weather by. It is an excellent cartridge for a one-rifle hunter that shoots long distances. It has taken a game of all sizes around the world.

Like most Weather by rounds, this cartridge is a premium load for the very discerning shooter. It is an ultra high-velocity cartridge giving about 300-400 fps higher velocity with lighter bullets than the more widespread 30-06 Springfield, which is regarded as considerably fast.

About: 7mm Wby Mag

  • Type: Game Cartridge
  • Place of origin: United States
  • Designer: Roy Weatherby
  • Designed: Circa 1940


  • Case type: Belted, Bottleneck
  • Bullet diameter: .284 in (7.2 mm)
  • Neck diameter: .312 in (7.9 mm)
  • Shoulder diameter: .490 in (12.4 mm)
  • Base diameter: .511 in (13.0 mm)
  • Rim diameter: .530 in (13.5 mm)
  • Rim thickness: .048 in (1.2 mm)
  • Case length: 2.55 in (65 mm)
  • Overall length: 3.25 in (83 mm)
  • Rifling twist: 1:10
  • Primer type: Large Rifle
  • Maximum pressure: 65,000 psi

Ballistic performance

Bullet mass/type Velocity Energy
160 gr (10 g) AccuBond 3,050 ft/s (930 m/s) 3,306 ft⋅lbf (4,482 J)
139 gr (9 g) Spire Point 3,240 ft/s (990 m/s) 3,343 ft⋅lbf (4,532 J)
154 gr (10 g) Spire Point 3,123 ft/s (952 m/s) 3,401 ft⋅lbf (4,611 J)
120 gr (8 g) TTSX 3,430 ft/s (1,050 m/s) 3,136 ft⋅lbf (4,252 J)
175 gr (11 g) A-Frame 3,070 ft/s (940 m/s) 3,662 ft⋅lbf (4,965 J)

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Latest products for 7mm wby mag

  • Euro Optics Norma American PH 7MM WBY 170gr ORYX Ammo 20171072 for $65.84

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