The .375 Chatfield-Taylor is an extreme .375-caliber wildcat cartridge formed from the massive .460 Weatherby Magnum case, delivering .375-caliber bullets at velocities significantly exceeding the .375 H&H Magnum and approaching the .378 Weatherby Magnum in energy. It occupies the ultra-high-performance niche of .375-caliber dangerous game hunting, intended for hunters who require maximum .375-caliber performance for the largest and most dangerous African game at extended ranges.
Type: Wildcat
Introduced: 1989, United States
Parent case: .460 Weatherby Magnum
Standardization: None
Bullet diameter: 0.375" (9.53 mm)
Case length: 2.913" (74 mm)
Overall length: 3.6" (91.44 mm)
Max pressure: 25,000 PSI
Rim type: Belted
Primer: Large Rifle Magnum
Typical twist rate: 1:12
Muzzle velocity: 3000–3400 fps
Muzzle energy: 4697–8966 ft-lbs
Effective range: 600 yd
Common bullet weights: 235, 270, 300, 350 gr
Primary use: hunting_dangerous_game, hunting_large_game
Production status: Obsolete
Also known as: 375 Chatfield-Taylor · .375 CT
History: The cartridge emerged from the tradition of wildcatting the Weatherby magnum case family to produce maximum-performance cartridges in various calibers. The .460 Weatherby Magnum parent case provides enormous capacity, enabling velocities previously impossible in .375-caliber factory cartridges. As a wildcat, it requires custom reamer-cut chambers and handloaded ammunition. It has never achieved…
Notable firearms: Custom bolt-action dangerous game rifles