What characterises .338 Norma Magnum?
.338 Norma Magnum is a distinct cartridge for large precision rifle systems. Its dimensions differ from .338 Lapua Magnum. .300 Norma Magnum is another cartridge too, so “Norma Magnum” without the complete name is too vague.
.338 Norma Magnum is a distinct cartridge for large precision rifle systems. Its dimensions differ from .338 Lapua Magnum. .300 Norma Magnum is another cartridge too, so “Norma Magnum” without the complete name is too vague.
The cartridge name does not determine which bullet a particular ammunition version contains. Every performance figure needs bullet design, mass and test conditions. One value cannot be applied unchanged to all versions, nor does it establish a fixed range.
The data section gives dimensions and their sources. Case length and overall cartridge length are different measurements. Energy values refer to the documented examples. Sporting use also depends on the event rules and range conditions. The name alone says nothing about eligibility.
.338 Norma Magnum — Dimensions, energy and range
- A · Overall cartridge length: 93.50 mm
- B · Case length: 63.30 mm
- C · Bullet diameter: 8.60 mm
Dimensions are taken from the table. Shape and proportions are simplified; the exposed bullet tip varies with the load. Not a scale standard or manufacturing drawing.
Drawing: Weitschuss
- Case length
- 63.30 mm
- Bullet diameter
- 8.60 mm
- Overall cartridge length
- 93.50 mm
- Muzzle energy E₀
- 6585 J (source example)
- Range context
- No sufficiently qualified range figure was taken from the reviewed sources.
What the dimensions mean
Case length measures the case without the bullet; overall length measures the complete cartridge. Bullet diameter is distinct from bore calibre. Sources may give nominal or maximum dimensions, so rounded figures can differ slightly. This overview is not a dimensioned standard drawing and does not establish interchangeability.
Understanding energy
E₀ is kinetic energy at the muzzle. It depends on bullet mass and velocity. These figures refer to selected examples from the sources, not every load of this calibre. Bullet design, barrel length and test conditions affect the result. A range of examples is neither a complete market comparison nor guaranteed minimum and maximum performance.
Understanding range
A sporting application distance describes a use case. Supersonic range is the distance over which a particular bullet remains faster than sound under specified conditions. Both differ from maximum flight distance. The cartridge name alone cannot provide a reliable range limit without load and condition details. These distances are neither hunting recommendations nor safety distances.
Data sources: Wikipedia · Source check 2026-10-04