Particularly, the .270 Wby Mag the result of necked down to accommodate the .277 in bullets and bringing down the case to fit a standard length action.
[4] Given its higher pressure and larger case which holds more powder than the .270 Winchester, the .270 Weatherby has about 200 ft/s faster performance with any particular bullet weight.
[5] It also outperforms newer cartidge designs such as the .270 WSM and the 6.8 Western.
In addition, a long barrel is necessary to take advantage of extra powder to gain maximum velocity.
Due to its flat trajectory result of a combination of a high muzzle velocity and ballistic coefficient, the .270 Wby Mag makes an excellent cartridge option for mid sized big game out to considerable ranges and the fact of being chambered in standard length actions allows the possibility of manufacturing a light mountain rifle.