.300 Norma Magnum
.300 Norma Magnum | ||||||||
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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 | ||||||||
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Source(s): Cartridges of the World, 2012 |
The .300 Norma Magnum, also known as .300 NM or "300 Norma" for short, is a centerfire magnum rifle cartridge developed by Swedish ammunition manufacturer Norma Precision. The .300 Norma Magnum uses a .338 Norma Magnum case necked down to the .30 caliber,[1] named to differentiate it from the older .308 Norma Magnum designed in 1960, and has begun to gain popularity in the long-range shooting community.
The United States Special Operations Command (USSOCOM) has selected .300 Norma Magnum as their new Cartridge (2016). According to the official C.I.P. (English: 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]
References[]
- ^ Barnes, Frank C. (2012). Richard A. Mann (ed.). Cartridges of the World (13th ed.). p. 471. ISBN 1440230595.
- ^ "C.I.P. TDCC datasheet 300 Norma Mag" (PDF). CIP. Archived (PDF) from the original on 12 July 2013. Retrieved 4 July 2013.
External links[]
Categories:
- Pistol and rifle cartridges
- Magnum rifle cartridges
- Ammunition stubs