.PNG)
.257 Weatherby Magnum Brass
From Wikipedia: https://en.wikipedia.org/wiki/.257_Weatherby_Magnum
The .257 Weatherby Magnum is a .257 caliber (6.53 mm) 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 in (64 mm). Of the cartridges developed by Roy Weatherby, the .257 Weatherby Magnum was known to have been his favorite, and the cartridge currently ranks third in Weatherby cartridge sales, after the .30-378 Weatherby Magnum and the .300 Weatherby Magnum.[2]
The .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[3] which is comparable to factory loadings of the .30-06 Springfield and the .35 Whelen in terms of energy.
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