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.300 Norma Magnum

Summary

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]

.300 Norma Magnum
TypeRifle
Place of originSweden
Production history
DesignerNorma
Designed2012
Specifications
Parent case.338 Norma Magnum
Case typeRimless, bottleneck
Bullet diameter7.83 mm (0.308 in)
Neck diameter8.68 mm (0.342 in)
Shoulder diameter14.29 mm (0.563 in)
Base diameter14.87 mm (0.585 in)
Rim diameter14.93 mm (0.588 in)
Rim thickness1.52 mm (0.060 in)
Case length63.30 mm (2.492 in)
Overall length93.50 mm (3.681 in)
Case capacity6.75 cm3 (104.2 gr H2O)
Rifling twist229 mm (1 in 9 in)
Primer typeLarge 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 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
  • S.W.O.R.D. International Mk-18 Mod 1 Mjölnir (designated marksman rifle) [6]
  • Cadex CDX R7

See also edit

References edit

  1. ^ Barnes, Frank C. (2012). Richard A. Mann (ed.). Cartridges of the World (13th ed.). p. 471. ISBN 978-1440230592.
  2. ^ "C.I.P. TDCC datasheet 300 Norma Mag" (PDF). CIP. Archived (PDF) from the original on 22 January 2022. Retrieved 4 July 2013.
  3. ^ "MK22 Precision Sniper Rifle (PSR)". PEO Soldier. Archived from the original on 18 May 2022. Retrieved 18 May 2022.
  4. ^ "1305-01-669-2481 (1305-AC33, 13065024, 13072050) Data". Part Target. Archived from the original on 4 June 2022. Retrieved 3 June 2022.
  5. ^ "ARMY - MIL-DTL-32618 (3) CONT. DIST". GlobalSpec. Archived from the original on 18 May 2022. Retrieved 18 May 2022.
  6. ^ "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.