Rifle · CIP standardized
.358 Norma Magnum
Norma's 1959 belted magnum, introduced three years before the .338 Winchester Magnum largely displaced it commercially.
- Caliber
- 0.3591″ · 9.12 mm
- Introduced
- 1961
- Case
- Belted
- Primary use
- Hunting
- Status
- Discontinued
- Introduced
- 1961
- Type
- Rifle
- Origin
- Sweden
- Inventor
- Norma
- Manufacturer
- Norma
- Standard
- CIP standardized
- Status
- Discontinued
- Availability
- Collector
- Case capacity
- 90 gr H₂O
- Twist (typical)
- 1:12
- Primer
- Boxer Large Rifle
- Case type
- Belted
- Max pressure
- 63,817 psi
- Eff. range
- 400 yd
- Recoil
- 25–35 ft·lb
Introduced by Norma
Ballistics
Published velocity/energy data isn't available for .358 Norma Magnum — an obsolete/collector cartridge.
Performance
Dimensionscase measurements · scale drawing · size vs familiar rounds
Case dimensions — the scale drawing at the top of the page is built from these.
CIP TDCC · verified| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 9.12 | 0.359 | ✓ |
| Neck ⌀ | 9.85 | 0.388 | ✓ |
| Shoulder ⌀ | 12.45 | 0.490 | ✓ |
| Shoulder angle | 25.5° | — | ✓ |
| Base ⌀ | 13.03 | 0.513 | ✓ |
| Rim ⌀ | 13.50 | 0.531 | ✓ |
| Belt ⌀ | 13.50 | 0.531 | ✓ |
| Rim thickness | 1.25 | 0.049 | ~ |
| Neck length | 8.34 | 0.328 | ≈ |
| Case length | 64.00 | 2.520 | ✓ |
| Overall length | 85.00 | 3.346 | ✓ |
Size vs familiar rounds
Drawn at true 1:1 — every case is accurate relative to the others. Absolute size depends on your screen's pixel density, so measuring one against a real ruler may be off. .358 Norma Magnum is highlighted below.
Factory loads
Being verified
Advertised FPS, energy, and BC are withheld until loads clear verification.
Suitable powders
3 reloading powders listed for .358 Norma Magnum, fastest to slowest. Cross-reference in the finder →
Reloading costestimate cost per round vs factory
Estimate your cost per round and how it compares to factory. Inputs are yours — nothing is stored.
Cost estimate only — not load data. Charge weight is your input; follow published manuals for safe charges.
Connected reference
History
Developed by Norma Precision of Sweden in the late 1950s–early 1960s. Offered superior performance to .35 Whelen in a belted magnum case. Never officially adopted by SAAMI, limiting commercial rifle production. Respected by European hunters and precision shooters who valued its performance.
FAQs
- What twist rate does .358 Norma Magnum use?
- .358 Norma Magnum typically uses a 1:12 twist rate.
- What bullet diameter is .358 Norma Magnum?
- .358 Norma Magnum uses a 0.3591″ (9.12 mm) diameter bullet.
- Is .358 Norma Magnum still in production?
- .358 Norma Magnum is discontinued; typical availability is collector.
- What is .358 Norma Magnum used for?
- .358 Norma Magnum is primarily used for hunting.
- What are the best powders for .358 Norma Magnum?
- Reloading powders commonly listed for .358 Norma Magnum include 203-B, URP, Norma 204.
Sources & provenance
Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 16 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →