.257 Weatherby Magnum (original) (raw)
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.
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| dbo:abstract | 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. The .257 Weatherby Magnum 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 .30-06 Springfield and the .35 Whelen in terms of energy. Discrepancies between the metric and U.S. diameters of the bullet may cause some confusion. A .257 bullet has a metric bullet diameter of 6.53 mm. However, in Europe cartridge designation nomenclature for a large part relies on the bore diameter. As the bore diameter of the .257 Weatherby Magnum is .250 inches this would make it a 6.35 mm caliber cartridge which uses 6.5 mm bullets (not to be confused with 6.5 mm caliber cartridges which use 6.7 mm/.264" bullets). (en) El .257 Weatherby Magnum es un calibre de rifle de fuego central desarrollado por Roy Weatherby, para fines de caza deportiva a partir del casquillo del .375 Holland & Holland Magnum, el cual fue acortado a 2.5 pulgadas (64 mm), para ser utilizado de un mecanismo de longitud estándar y cuyo cuello fue ajustado para alojar un proyectil calibre .257". para volverse uno de los primeros cartuchos belted magnum de la línea Weatherby y uno de los más populares hasta la fecha, solo por debajo del .30-378 Weatherby Magnum y el .300 Weatherby Magnum. El .257 Weatherby Magnum ofrece la trayectoria más planas entre los cartuchos comerciales, que genera una velocidad de salida, con un proyectil de 115 granos (Nosler Ballistic Tip), de 3,400 pies por segundo(1,036 m/s) y una energía de 2,952 libras/pie (4,002 J), comparable con la energía generada por el .30-06 Springfield o el .35 Whelen. El diámetro del .257 Weatherby Magnum es .250 pulgadas que en el sistema métrico es de 6.35 mm. (es) O .257 Weatherby Magnum é um cartucho de fogo central para rifle de calibre .257 (6,35 mm) cinturado em forma de "garrafa". É uma das magnum de comprimento padrão original desenvolvida ao encurtar o estojo Magnum do .375 H&H Magnum para aproximadamente 2,5 pol. (64 mm). Dos cartuchos desenvolvidos por Roy Weatherby, o .257 Weatherby Magnum era conhecido por ter sido seu favorito, e o cartucho atualmente ocupa o terceiro lugar nas vendas de cartuchos Weatherby, depois do .30-378 Weatherby Magnum e do .300 Weatherby Magnum. O .257 Weatherby Magnum é um dos cartuchos comerciais de tiro mais plano comercialmente disponíveis. É capaz de disparar uma bala "Nosler Ballistic Tip" de 115 gr (7,5 g) a 3.400 ft/s (1.036 m/s), gerando 2.952 ft-lbf (4.002 J) de energia, que é comparável aos carregamentos de fábrica do .30-06 Springfield e o .35 Whelen em termos de energia. Discrepâncias entre os diâmetros métrico e americano da bala podem causar alguma confusão. Uma bala de 0,257 tem um diâmetro métrico de bala de 6,53 mm. No entanto, na Europa, a nomenclatura de designação de cartucho depende em grande parte do diâmetro interno do cano. Como o diâmetro do cano do .257 Weatherby Magnum é de .250 polegadas, isso o tornaria um cartucho de calibre de 6,35 mm que usa balas de 6,5 mm (não deve ser confundido com cartuchos de calibre de 6,5 mm que usam balas de 6,7 mm / 0,264"). (pt) |
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| dbp:balsrc | Weatherby (en) |
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| dbp:btype | BST (en) Partition (en) SP (en) |
| dbp:bullet | 0.257000 (xsd:double) |
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| dbp:caption | 0.257000 (xsd:double) |
| dbp:caseCapacity | 84 (xsd:integer) |
| dbp:caseLength | 2.545000 (xsd:double) |
| dbp:caseType | Belted Magnum (en) |
| dbp:designDate | 1944 (xsd:integer) |
| dbp:designer | dbr:Roy_Weatherby |
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| dbp:name | 0.257000 (xsd:double) |
| dbp:neck | 0.283000 (xsd:double) |
| dbp:origin | dbr:United_States |
| dbp:parent | 0.375000 (xsd:double) |
| dbp:primer | Large Rifle (en) |
| dbp:productionDate | 1948 (xsd:integer) |
| dbp:rifling | 1.0 (dbd:inch) |
| dbp:rimDia | 0.531500 (xsd:double) |
| dbp:rimThick | 0.051000 (xsd:double) |
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| rdfs:comment | 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. (en) El .257 Weatherby Magnum es un calibre de rifle de fuego central desarrollado por Roy Weatherby, para fines de caza deportiva a partir del casquillo del .375 Holland & Holland Magnum, el cual fue acortado a 2.5 pulgadas (64 mm), para ser utilizado de un mecanismo de longitud estándar y cuyo cuello fue ajustado para alojar un proyectil calibre .257". para volverse uno de los primeros cartuchos belted magnum de la línea Weatherby y uno de los más populares hasta la fecha, solo por debajo del .30-378 Weatherby Magnum y el .300 Weatherby Magnum. (es) O .257 Weatherby Magnum é um cartucho de fogo central para rifle de calibre .257 (6,35 mm) cinturado em forma de "garrafa". É uma das magnum de comprimento padrão original desenvolvida ao encurtar o estojo Magnum do .375 H&H Magnum para aproximadamente 2,5 pol. (64 mm). Dos cartuchos desenvolvidos por Roy Weatherby, o .257 Weatherby Magnum era conhecido por ter sido seu favorito, e o cartucho atualmente ocupa o terceiro lugar nas vendas de cartuchos Weatherby, depois do .30-378 Weatherby Magnum e do .300 Weatherby Magnum. (pt) |
| rdfs:label | .257 Weatherby Magnum (en) .257 Weatherby Magnum (es) .257 Weatherby Magnum (pt) |
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