How fast is a 257 Weatherby Mag?

3,400 ft/s
257 Weatherby Magnum is one of the flattest shooting commercial cartridges. It is capable of firing a 115 gr (7.5 g) Nosler Ballistic Tip bullet at 3,400 ft/s (1,036 m/s) generating 2,952 ft⋅lbf (4,002 J) of energy which is comparable to factory loadings of the .

What is considered a magnum round?

A magnum cartridge is a firearm cartridge with a larger case size than, or derived from, a similar cartridge of the same projectile (bullet) caliber and case shoulder shape. The term derives from the .357 Magnum, the original cartridge with this designation.

What is a 257 Weatherby Magnum?

Designed in 1944—a year before Roy Weatherby went into the commercial gun business—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. 2.5 inches.

What is the muzzle velocity of a Weatherby Magnum?

One of its most popular factory loads features the 115-grain Nosler Ballistic Tip bullet with a muzzle velocity of 3,400 fps, which generates 2,952 ft.-lbs. of kinetic energy (K.E.)—comparable muzzle energy to the .30-06 and .35 Whelen. The .257 Weatherby Magnum shares the same cartridge case as both the .270 and 7mm Weatherby Magnums.

What is a Weatherby cartridge?

One was the .224 Weatherby, a cartridge famous for its downrange performance and a favorite for many varmint shooters, that is regrettably out of production. The other one was the .257 Weatherby, which as it turned out, was both the choice of Roy Weatherby and his son Ed, for antelope and mule deer-type game.

What year was the 257 rifle made?

For a starting point, and speaking to Roy at shows and what I’ve read of his accounts in books, the .257 was developed in 1943 The bolt knob is checkered, and the safety lever is two position, forward to fire, back for safe. and then starting out big-time in 1945, he had the .220 Rocket, .257, .270 and .300 Weatherby Magnums.