.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)
Rifling twist 229 mm (1 in 9 in)
Primer type Large rifle magnum
Maximum pressure (CIP) 440.00 MPa (63,817 psi)
Ballistic performance
Bullet mass/type Velocity Energy
220 gr (14 g) MatchKing 3,003 ft/s (915 m/s) 4,404 ft⋅lbf (5,971 J)
Source(s): Cartridges of the World, 2012

The .300 Norma Magnum is a cartridge that has begun to gain popularity in the long range shooting community. The .300 Norma Magnum is a .338 Norma Magnum case necked down to .308 caliber.[1] This cartridge was named .300 Norma Magnum to differentiate it from the .308 Norma Magnum designed in 1960. The United States Special Operations Command (SOCOM) has selected .300 Norma Magnum as their new Advanced Sniper Rifle Cartridge (2016).

C.I.P. listed this cartridge in 2012 with a max pressure of 4400 bar.[2]

References

  1. ↑ Barnes, Frank C. (2012). Richard A. Mann, ed. Cartridges of the World (13th ed.). p. 471. ISBN 1440230595.
  2. ↑ "300 Norma Mag" (PDF). CIP. Archived (PDF) from the original on 12 July 2013. Retrieved 4 July 2013.
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