The .308 Norma Magnum (7.62×65mmBR)

cartridge Cartridge may refer to: Objects * Cartridge (firearms), a type of modern ammunition * ROM cartridge, a removable component in an electronic device * Cartridge (respirator), a type of filter used in respirators Other uses * Cartridge (surname), a ...

was created by Nils Kvale at

Norma Norma may refer to: * Norma (given name), a given name (including a list of people with the name) Astronomy *Norma (constellation) *555 Norma, a minor asteroid * Cygnus Arm or Norma Arm, a spiral arm in the Milky Way galaxy Geography *Norma, Lazi ...

Sweden Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic countries, Nordic c ...

. Like the larger .358 Norma Magnum it is based on a shortened 300 H&H magnum. It very closely resembled the wildcat .30-338 Magnum cartridge. Kvale designed a wildcat cartridge, the 8mm Kvale, in 1949. This gave a magnum power cartridge by rechambering surplus 8mm Mauser M98 rifles. The lessons learned from this cartridge were put into the .308 and .358 Norma Magnum. While still popular, the .308 Norma Magnum has been largely supplanted by the

.300 Winchester Magnum The .300 Winchester Magnum (also known as .300 Win Mag or .300 WM) (7.62×67mmB, 7.62x66BR) is a belted, bottlenecked magnum rifle cartridge that was introduced by the Winchester Repeating Arms Company in 1963. The .300 Winchester Magnum is a m ...

, mainly due to the availability of rifles chambered in this caliber.

References

Further reading