WEATHERBY CARTRIDGES

Ultra-high velocity, magnum ammunition is how Roy Weatherby got started in the 1940s. As a young wildcatter, he revolutionized the industry with his fast, hard-hitting loads that were dead-on accurate.

Today, those same performance qualities are every bit a part of Weatherby cartridges. Weatherby’s move to Wyoming is an exciting step towards the continual opportunity for innovation. The cartridges that paved the way for advancement in ballistics and load development will forever be a solid foundation. Weatherby’s intention is a constant progression for ballistic superiority, confidence in developing new
and impressive cartridges that perform and meet expectations attached to the Weatherby brand. We anticipate the stories ahead: the successful harvests, the superb accuracy, and the relationships formed around the fire ring. Hopefully, you will choose a Weatherby rifle and ammunition to accompany the journey, and create memories forged for a lifetime.

Ammunition Shipment Restrictions

Must be 18 or older to purchase rifle ammunition. Shipping not available to P.O. Boxes, International Addresses, AK, CA, HI, MA, CT, IL, NJ, NY nor DC residents. Residents of DE, KS, OH, and WA may have additional restrictions. All ammunition is shipped domestic ground and an adult signature is required. We do not accept returns on ammunition.

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    224 Weatherby Magnum

    $89.00

    Introduced in 1964, this is the only commonly available varmint cartridge with a belted case design – a design usually reserved for larger cartridges.

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    240 Weatherby Magnum

    $69.00 – $99.00

    The 240 delivers 3,500 fps muzzle velocity (80 grain bullet) and is, on average, considerably faster than any existing standard 6mm cartridge. This means more striking energy delivered at the target, with less bullet drop at longer ranges.

    CARTRIDGE SPECS

    Bullet Diameter: .243 (6.2mm)
    Common Reference: 6mm Caliber
    Max Case Length: 2.5”
    Production Start: 1968

    BALLISTIC INFO

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    257 Weatherby Magnum

    $69.00 – $109.00

    The .257 Weatherby was one of Roy Weatherby’s earliest creations and quickly became his favorite. This flat shooting cartridge has grown to be one of Weatherby’s most popular rounds.

    CARTRIDGE SPECS

    Bullet Diameter: .257 (6.35mm)
    Common Reference: 25 Caliber
    Max Case Length: 2.549”
    Developed: 1943
    Production Start: 1945

    BALLISTIC INFO

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    6.5 PRC

    $99.00

    The 6.5 PRC (Precision Rifle Cartridge) was released in 2018. This was the birth of the PRC line-up, intended to compliment the 6.5 Creedmoor, the 6.5 PRC offers 200+ FPS faster than the CM. Weatherby is known for ballistics and velocity. Our offerings push the industry standards on both.

    CARTRIDGE SPECS

    Bullet Diameter: .264 (6.5mm)
    Common Reference: 6.5mm Caliber
    Max Case Length:N/A
    Production Start: 2018

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    6.5 Weatherby RPM

    $79.00 – $109.00

    The 6.5 WBY RPM (Rebated Precision Magnum) is based on the lengthened version of the .284 Winchester. The large body diameter, low body taper, and 35-degree shoulder mean that case capacity is greatly increased, leading to higher velocities.

    CARTRIDGE SPECS

    Bullet Diameter: .264 (6.5mm)
    Common Reference: 6.5mm Caliber
    Max Case Length: 2.57”
    Production Start: 2019

    BALLISTIC INFO

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    6.5-300 Weatherby Magnum

    $69.00 – $109.00

    Developed to take advantage of the extremely accurate 6.5mm bullet, the 6.5-300 is a 300 WBY case necked down from 30 caliber to 6.5mm. The result was the fastest 6.5mm cartridge on the market pushing a 140 gr bullet over 3400 fps.

    CARTRIDGE SPECS

    Bullet Diameter: .264 (6.5mm)
    Common Reference: 6.5mm Caliber
    Max Case Length: 2.825”
    Production Start: 2016

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    270 Weatherby Magnum

    $69.00 – $109.00

    The .270 Weatherby Magnum cartridge was developed by Roy Weatherby in 1943 and was the first belted magnum to be offered to the public when he open his business in 1945.

    CARTRIDGE SPECS

    Bullet Diameter: .277 (7mm)
    Common Reference: 270 Caliber
    Max Case Length: 2.549”
    Developed: 1943
    Production Start: 1945

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    280 ACKLEY IMPROVED

    $109.00

    The 280 AI was developed by Parker Otto (P.O.) Ackley. P.O. was a lot like Roy Weatherby, a wildcatter who was in search of better solutions. His 280 AI set out to improve the .280 Rem by steeping the shoulder to 40 degrees to increase powder capacity. Weatherby is known for ballistics and velocity, our 280 AI offerings will push the industry standards on both.

    CARTRIDGE SPECS

    Bullet Diameter: .284 (7.2mm)
    Common Reference: 7mm Caliber
    Max Case Length: 3.34”
    Production Start: 2007

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    7MM PRC

    $99.00

    The 7MM PRC was introduced in 2022 and is the newest addition to Hornady’s PRC (Precision Rifle Cartridge) line-up. The 7MM PRC was designed to push long, heavy bullets in a standard long action. These long bullets are known to have high ballistic coefficient which help keep accuracy at long range making them a great option for hunting in the west. Weatherby is known for ballistics and velocity, our 7MM PRC offerings push the industry standards on both.

    CARTRIDGE SPECS

    Bullet Diameter: .284 (7.2mm)
    Common Reference: 7mm Caliber
    Max Case Length: N/A
    Production Start: 2022

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    7mm Weatherby Magnum

    $69.00 – $99.00

    The 7mm Weatherby, designed by Roy Weatherby 1944, was developed from a 300 H&H case, it is a belted case that sports Weatherby’s iconic double radius shoulder.

    CARTRIDGE SPECS

    Bullet Diameter: .284 (7.2mm)
    Common Reference: 7mm Caliber
    Max Case Length: 2.549”
    Developed: 1944
    Production Start: 1947

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    28 NOSLER

    $109.00

    The 28 Nosler was released in 2015 and is based off a 300 Remington Ultra Mag but with a rebated rim. The 28 Nosler is touted as the fastest 7MM on the market today and has a large case capacity capable of pushing large, high BC bullets. At Weatherby we know velocity, we took our 75+ years of ballistics experience and developed a few incredible hunting loads that will take your 28 Nosler to the next level.

    CARTRIDGE SPECS

    Bullet Diameter: .284 (7.2mm)
    Common Reference: 7mm Caliber
    Max Case Length: 3.34”
    Production Start: 2015

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    300 PRC

    $99.00

    The 300 PRC (Precision Rifle Cartridge) was introduced to the market in 2018. Designed to take advantage of long heavy bullets, the 300 PRC excels at long distances. Weatherby is known for ballistics and velocity, our offerings will push the industry standards on both.

    CARTRIDGE SPECS

    Bullet Diameter: .308 (7.8mm)
    Common Reference: .30 Caliber
    Max Case Length: N/A”
    Production Start: 2018

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    300 Weatherby Magnum

    $69.00 – $109.00

    Brought to market by Roy Weatherby in 1945 the 300 WBY was said to be 50 years ahead of its time. The 300 WBY is an ultra versatile 30 caliber option that is great for a variety of hunting situations.

    CARTRIDGE SPECS

    Bullet Diameter: .308 (7.8mm)
    Common Reference: .30 Caliber
    Max Case Length: 2.825”
    Developed: 1944
    Production Start: 1945

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    30-378 Weatherby Magnum

    $139.00 – $154.00

    The 30-378 is known as the fastest production .30 Caliber available on the market. It is a truly potent magnum cartridge, with its greatest strength found at ranges exceeding 1,000 yards

    CARTRIDGE SPECS

    Bullet Diameter: .308 (7.8mm)
    Common Reference: 30 Caliber
    Max Case Length: 2.825”
    Developed: 1959
    Production Start: 1996

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    338 WBY RPM

    $79.00 – $109.00

    The 338 WBY RPM (Rebated Precision Magnum) is based on the Weatherby 6.5 RPM necked up to accept a 338 caliber bullet. The 338 RPM was designed to take advantage of Weatherby 6-Lug action to get magnum performance in a 5lb rifle. The large body diameter, low body taper, and 35-degree shoulder mean that case capacity is greatly increased, leading to higher velocities.

    CARTRIDGE SPECS

    Bullet Diameter: .338 (8.6mm)
    Common Reference: 338 Caliber
    Max Case Length: 2.57”
    Production Start: 2022

    BALLISTIC INFO

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    378 Weatherby Magnum

    $169.00

    Designed to replace the 375 Weatherby Magnum, deep penetration and bone smashing power are the calling cards of the 378.

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    340 Weatherby Magnum

    $89.00 – $139.00

    Introduced in 1963, the 340 Weatherby was designed as a response to the 338 Winchester Mag. However, Roy took advantage of the longer case to pack in more powder for greater velocity.

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    338-378 Weatherby Magnum

    $164.00 – $179.00

    Released in 1998 the 338-378 has a larger case capacity and higher velocities than the 338 Lapua.

    CARTRIDGE SPECS

    Bullet Diameter: .338 (8.6mm)
    Common Reference: 338 Caliber
    Max Case Length: 2.913”
    Production Start: 1998

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    375 Weatherby Magnum

    $154.00

    This cartridge is the result of giving the “Weatherby treatment” to the legendary 375 H&H.

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    416 Weatherby Magnum

    $219.00

    The 416 has quickly become one of the best all-around cartridges for Africa.

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    460 Weatherby Magnum

    $209.00 – $219.00

    Introduced in 1959. Considered to be the world’s largest, most powerful shoulder-fired cartridge, the 460 shoots a 500 grain bullet at 2,600 fps, delivering an incredible 7,507 foot pounds of muzzle energy.

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