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The .308 Norma Magnum (7.62×65mmBR) cartridge was created by Nils Kvale at Norma, Sweden. Like the larger .358 Norma Magnum it is based on a shortened 300 H&H magnum. [1] [2] It very closely resembled the wildcat .30-338 Magnum cartridge. [3] [2] Kvale designed a wildcat cartridge, the 8mm Kvale, in 1949.
A magnum cartridge is a firearm cartridge with a larger case size than, or derived from, a similar cartridge of the same projectile caliber and case shoulder shape. [ clarification needed ] The term derives from the .357 Magnum , the original revolver cartridge with this designation.
Nils Kvale and Roy Weatherby were invaluable for Norma's success in the latter half of the 20th century. Kvale was a product developer for the company in the 1960s and introduced a number of new calibers such as the .308 Norma Magnum and .358 Norma Magnum to the market. Today, Norma has a yearly production of 100 million rounds in 110 calibers. [6]
The ammunition was bulk-packed in standard 20-round cartons without stripper clips to maximize the amounts delivered and the packaging was marked in the Chinese language. In 1944 there was a contract to make 30-million modified Springfield-type Mauser-compatible stripper clips which were bulk-packed in ammo cans. Due to the long transport times ...
The .308 Winchester has a 3.64 mL (56 gr H 2 O) cartridge case capacity. [9] The exterior shape of the case was designed to promote reliable case feeding and extraction in bolt-action rifles and machine guns alike, under extreme conditions. .308 Winchester maximum C.I.P. cartridge dimensions. All dimensions in millimeters (mm) and inches.
The .300 Norma Magnum, also known as .300 NM or 300 Norma, is a centerfire magnum rifle cartridge developed by Swedish ammunition manufacturer Norma Precision.The .300 Norma Magnum uses a .338 Norma Magnum parent case necked down to .30 caliber, [1] named to differentiate it from the older .308 Norma Magnum designed in 1960, and has begun to gain popularity among long-range shooters.
The .30 ICL is an improved .264 Winchester Magnum necked up to .308 and a pushed-back shoulder to create the steep angle common to all ICL cartridges and a long neck for improved handloading. Performance with a 150-grain (9.7 g) bullet is approximately 3,545 ft/s (1,081 m/s) and with a 180-grain (12 g) bullet is approximately 3,185 ft/s (971 m/s).
The .358 Norma is what is known as a "short magnum," designed to work in long rifle actions; many .30-06 rifles such as the 1903 Springfield rifle have been rebarreled to the much-more powerful .358 Norma. [5] Norma's factory ammunition for the .358 Norma drives a 250-grain bullet at 2880 fps and produces more than 4,600 ft-lbs (foot-pounds) of ...