.300 Norma Magnum
| .300 Norma Magnum | ||||||||
|---|---|---|---|---|---|---|---|---|
| Type | Rifle | |||||||
| Place of origin | Sweden | |||||||
| Production history | ||||||||
| Designer | Norma | |||||||
| Designed | 2012 | |||||||
| Specifications | ||||||||
| Parent case | .338 Norma Magnum | |||||||
| Case type | Rimless, bottleneck | |||||||
| Bullet diameter | 7.83 mm (0.308 in) | |||||||
| Neck diameter | 8.68 mm (0.342 in) | |||||||
| Shoulder diameter | 14.29 mm (0.563 in) | |||||||
| Base diameter | 14.87 mm (0.585 in) | |||||||
| Rim diameter | 14.93 mm (0.588 in) | |||||||
| Rim thickness | 1.52 mm (0.060 in) | |||||||
| Case length | 63.30 mm (2.492 in) | |||||||
| Overall length | 93.50 mm (3.681 in) | |||||||
| Case capacity | 6.75 cm3 (104.2 gr H2O) | |||||||
| Rifling twist | 229 mm (1 in 9 in) | |||||||
| Primer type | Large rifle magnum | |||||||
| Maximum pressure (CIP) | 440.00 MPa (63,817 psi) | |||||||
| Ballistic performance | ||||||||
| ||||||||
| Source(s): Cartridges of the World, 2012 | ||||||||
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. According to the official C.I.P. (French: Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives) rulings, the .300 Norma Magnum can handle up to 440.00 MPa (63,817 psi) Pmax piezo pressure.[2]
The United States Special Operations Command (USSOCOM) chose the new MK22 Advanced Sniper Rifle, which is chambered in .300 Norma Magnum (designated M1163) as well as .338 Norma Magnum.[3][4][5]
Chambering availability
[edit]The .300 Norma Magnum chambering is offered in these factory rifles:
- Barrett MRAD
- Blaser R8
- Desert-Tech SRSA2
- Sako TRG M10 - Multi-caliber rifle[6]
- S.W.O.R.D. International Mk-18 Mod 1 Mjölnir (designated marksman rifle) [7]
- Cadex CDX R7
- Accuracy International AXSR and AXMC
See also
[edit]- .338 Lapua Magnum
- .338 Remington Ultra Magnum
- .338-378 Weatherby Magnum
- .338-416
- .338 Chey Tac
- .338 Edge
- .338 Xtreme
- 8 mm caliber
- List of rifle cartridges
References
[edit]- ^ Barnes, Frank C. (2012). Richard A. Mann (ed.). Cartridges of the World (13th ed.). p. 471. ISBN 978-1440230592.
- ^ "C.I.P. TDCC datasheet 300 Norma Mag" (PDF). CIP. Archived (PDF) from the original on 22 January 2022. Retrieved 4 July 2013.
- ^ "MK22 Precision Sniper Rifle (PSR)". PEO Soldier. Archived from the original on 18 May 2022. Retrieved 18 May 2022.
- ^ "1305-01-669-2481 (1305-AC33, 13065024, 13072050) Data". Part Target. Archived from the original on 4 June 2022. Retrieved 3 June 2022.
- ^ "ARMY - MIL-DTL-32618 (3) CONT. DIST". GlobalSpec. Archived from the original on 18 May 2022. Retrieved 18 May 2022.
- ^ "TSAKO TRG M10)". 2019-11-19. Retrieved 2020-08-16.
- ^ "Mjölnir 338 Lapua Semi-Automatic Rifle - S.W.O.R.D. International". 2017-04-26. Archived from the original on 2017-04-26.
External links
[edit]- https://www.longrangeshootinghandbook.com/socom-chooses-300-norma-mag-asr/
- C.I.P. TDCC datasheet 300 Norma Mag.
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