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
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
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
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
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
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
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
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
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
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
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
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
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
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
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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