Weatherby, Inc. is an American gun manufacturer founded in 1945 by Roy Weatherby

Roy Weatherby

Roy E. Weatherby was the founder and owner of Weatherby, Inc., an American rifle, shotgun and cartridge manufacturing company set up in 1945. Weatherby created an entire line of custom cartridges, and was one of the people responsible for the industry interest in high-speed cartridges...

. The company is best known for its high-powered magnum cartridges, such as the .257 Weatherby Magnum

.257 Weatherby Magnum

The .257 Weatherby Magnum is a .25 Caliber belted bottlenecked cartridge. It is one of the original standard length magnums developed by shortening the .375 H&H Magnum case to approx....

 and the .460 Weatherby Magnum

.460 Weatherby Magnum

The .460 Weatherby Magnum is a belted, bottlenecked rifle cartridge, developed by Roy Weatherby in 1957. The cartridge is based on the .378 Weatherby Magnum necked up to accept the bullet. The original .378 Weatherby Magnum parent case was inspired by the .416 Rigby...

. Company headquarters is in the northern San Luis Obispo County town of Paso Robles, California.
The original production rifle

Rifle

A rifle is a firearm designed to be fired from the shoulder, with a barrel that has a helical groove or pattern of grooves cut into the barrel walls. The raised areas of the rifling are called "lands," which make contact with the projectile , imparting spin around an axis corresponding to the...

s by Roy Weatherby were built on commercial Mauser

Mauser

Mauser was a German arms manufacturer of a line of bolt-action rifles and pistols from the 1870s to 1995. Mauser designs were built for the German armed forces...

 actions by FN, Brevex (magnum), and Mathieu (left hand).