Rifle · CIP
.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
- 1959
- Case
- Belted
- Parent
- .300 H&H Magnum
- Primary use
- Hunting
- Status
- Discontinued
- Introduced
- 1959
- Type
- Rifle
- Origin
- Sweden
- Inventor
- Nils Kvale (Norma)
- Manufacturer
- Norma
- Standard
- CIP
- Status
- Discontinued
- Availability
- Collector
- Case capacity
- 88 gr H₂O
- Twist (typical)
- 1:12
- Primer
- Boxer Large Rifle
- Case type
- Belted
- Max pressure
- 63,817 psi, CIP transducer
- Eff. range
- 400 yd
- Max range
- 4950 yd
- Recoil
- 35–46.9 ft·lb
Introduced by Norma
Ballistics
Published velocity/energy data isn't available for .358 Norma Magnum — an obsolete/collector cartridge. Parent case: .300 H&H Magnum.
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.
Lineage
shortened, reduced body taper, necked to .358
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 is .358 Norma Magnum based on?
- .358 Norma Magnum is derived from the .300 H&H Magnum case.
- 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 →
