270 Winchester, conceived solely as a big game hunting cartridge, became very popular, in part, due to the widespread praises of gun writer Jack O'Connor who used the cartridge for 40 years and touted its merits in the pages of Outdoor Life as well as other renowned gun writers of the time such as late Col. 277' caliber cartridge was capable of shooting flatter than the popular ?. 270 Winchester attained great popularity among hunters and sporting rifle enthusiasts along the succeeding decades and especially in the post- World War II period, ranking it among the most popular and widely used big game hunting cartridges worldwide especially with the widespread popularity of rifle scopes. 30-06 Springfield, chambered for the M1903 Springfield bolt action rifle, which could be sports modified for hunting purposes the larger popularity for lever action rifles held by American hunters and the lack of exposure in gun publications back in the day. 270 Winchester was not an immediate success due to the popularity of the then, relatively recent introduction of the. Introduced in 1925 along with the Winchester Model 54 bolt action rifle under the name '270 WCF' (270 Winchester Centerfire), the.

30-03 parent case and the bore diameter was likely inspired by 7mm Mauser. 280 Remington, both of which are longer than the. 270 Winchester is a rifle cartridge developed by Winchester Repeating Arms Company in 1923 and unveiled in 1925 as a chambering for their bolt-action Model 54.

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