In 1925 Winchester introduced a .30-06 case necked down to a bullet diameter which until then never had been used any British or other European manufacturer: .277”. The result was to become one of the most popular hunting cartridges in the world. When introduced it offered better long range performance than any other available big game cartridge. It was the favorite of the late gunwriter Jack O’Connor who through his writing popularized the .270 everywhere in the English speaking parts of the world. In Europe it also became widely used, but met heavy competition from the many popular 6,5mm cartridges and especially the 7x64 Brenneke. Over here it was never called by its metric designation - 6,9x64 - but kept its American name of .270 Winchester.
The success of the .270 was undoubtedly partly due to fact that it has a combination of a flat trajectory and a very manageable recoil with the standard 130 grain bullet. At normal hunting ranges a well placed bullet from a .270 means instant death to all species up to the size of mule deer, and many hunters prefer it for mountain hunting as respectable muzzle velocities and equivalent trajectories can be had from a 22” or even a 20” barrel.
Whether the .270 is an elk cartridge or not has been discussed endlessly, but hunters who do intend to use the .270 Win. on these species are recommended to use bullets in the 150-160 grain range in order to ensure sufficient penetration. With 100 grain bullets the .270 is also a fine varmint cartridge, although not intended to be when originally designed.
Norma Precision, that defines the quality of components and loading selected for Norma‘s American PH line-up. Production at Norma starts with the highest quality brass cases available in the industry, combines that with Norma powder and bullets specifically selected for North American big game! Norma‘s tried and true Oryx bonded bullet – for max penetration and near 100% weight retention. To insure perfect mushrooming, the Oryx has a thin forward Jacket with internal splitting zones and a thicker rear jacket to insure high residual weight after impact.The Oryx has rapid expansion, excellent penetration and high energy transfer. Perfect for the North American Big Game hunter!
The lead free Kalahari – a lighter bullet that is designed with higher velocities for a fl atter long range trajectory. Loaded under the strictest standards , this unique bullet is loaded with selected lots of powder to insure the highest velocity for flatter rajectory. It has the highest ballistic coefficient possible and lowest wind drift achievable. Bullet expansion is controlled and restricted to insure maximum wounding effect and guaranteeing deep penetration. Kalahari sets the standard for ammunition used where challenging environments and long shots are required! Norma Precision–the right ammunition for the Professional Hunter.
Calibre: 270 Winchester
Muzzle Velocity: 870ms
Weight: 150 Gr.
Bullet Type: Oryx
Ballistic Co Eff: 0.373
Rounds Per Box: 20
Rounds Per Case: 200
At Distance: @100m
Trajectory: Short 0 @ 100m
Trajectory: Long -121mm @ 2
* Trajectory short/long refers to use of a short or long barrel.