.338 Norma Magnum
Magnum / long range
Evolution of .338 Lapua optimized for heavy VLD bullets: the platform chosen for the new U.S. medium machine gun.
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Overview
Developed by Norma and Jimmie Sloan from 2008. The .338 Lapua case is slightly shortened to push the bullet base further back, leaving room for very long ogives (300 gr Sierra MatchKing, 250 gr Scenar) without losing usable powder capacity.
Specifications
- Bullet diameter
- 8,61 mm (.338")
- Case length
- 63,3 mm
- Overall length
- 91,4 mm
- Bullet weight
- 19,4 g (300 gr)
- Typical muzzle velocity
- ≈ 900 m/s
- Typical energy
- ≈ 7000 J
- Introduced
- 2008
Pros
- +Better accuracy with heavy VLD bullets.
- +Suited to next-generation medium machine guns.
Cons
- −Less widely available than Lapua.
History and use
Selected by USSOCOM in 2018 for the SIG MG338 light machine gun and for AI AXMC and AXSR rifles. Used in ELR competition.
Weapons adopting it (2)
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