Rifle · SAAMI
.416 Weatherby Magnum
The most powerful .416 ever made.
- Caliber
- 0.416″ · 10.566 mm
- Introduced
- 1989
- Case
- Belted
- Parent
- .378 Weatherby Magnum
- Primary use
- Dangerous Game, Big Game
- Status
- Active
- Introduced
- 1989
- Type
- Rifle
- Origin
- United States
- Inventor
- Roy Weatherby
- Manufacturer
- Weatherby
- Standard
- SAAMI
- Status
- Active
- Availability
- Common
- Case capacity
- 130 gr H₂O
- Twist (typical)
- 1:14
- Primer
- Large Rifle Magnum
- Case type
- Belted
- Max pressure
- 65,000 psi
- Eff. range
- 300 yd
- Max range
- 700 yd
- Recoil
- 55–75 ft·lb
Introduced by Weatherby
Ballistics
Published velocity/energy data isn't available for .416 Weatherby Magnum. Parent case: .375 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.
SAAMI · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 10.57 | 0.416 | ✓ |
| Neck ⌀ | 11.28 | 0.444 | ✓ |
| Shoulder ⌀ | 14.25 | 0.561 | ✓ |
| Shoulder angle | — | — | |
| Base ⌀ | 14.78 | 0.582 | ✓ |
| Rim ⌀ | 14.71 | 0.579 | ✓ |
| Belt ⌀ | 15.33 | 0.604 | ✓ |
| Rim thickness | 1.24 | 0.049 | ~ |
| Neck length | 9.96 | 0.392 | ≈ |
| Case length | 73.99 | 2.913 | ✓ |
| Overall length | 95.25 | 3.750 | ✓ |
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. .416 Weatherby Magnum is highlighted below.
Missing a dimension for .416 Weatherby Magnum? Some case measurements aren't in a published SAAMI/CIP drawing yet. Have a factory or reamer print? Send it → — verified hard-to-find data earns a free Lindcott sticker.
Factory loads
Being verified
Advertised FPS, energy, and BC are withheld until loads clear verification.
Suitable powders
5 reloading powders listed for .416 Weatherby 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.
Firearms chambered in .416 Weatherby Magnum
12 models in the database chamber .416 Weatherby Magnum. Browse all →
Lineage
Connected reference
History
Introduced by Weatherby in 1989, the year .416 cartridges proliferated (also .416 Remington Magnum). Weatherby's version operates at higher pressure than the others, using the company's larger belted case. Generates more energy than any other standard .416.
FAQs
- What twist rate does .416 Weatherby Magnum use?
- .416 Weatherby Magnum typically uses a 1:14 twist rate.
- What bullet diameter is .416 Weatherby Magnum?
- .416 Weatherby Magnum uses a 0.416″ (10.566 mm) diameter bullet.
- Is .416 Weatherby Magnum still in production?
- .416 Weatherby Magnum is active; typical availability is common.
- What is .416 Weatherby Magnum used for?
- .416 Weatherby Magnum is primarily used for dangerous game, big game.
- What is .416 Weatherby Magnum based on?
- .416 Weatherby Magnum is derived from the .375 H&H Magnum case.
- What are the best powders for .416 Weatherby Magnum?
- Reloading powders commonly listed for .416 Weatherby Magnum include Norma 204, Norma MRP, Reloader 25, H870, among 5 suitable options.
Sources & provenance
- Standard SAAMI — SAAMI cartridge & chamber drawing — .416 Weatherby Magnum
- Standard SAAMI — ANSI/SAAMI Z299 — Cartridge & Chamber Drawings archived
- Secondary .416 Weatherby Magnum - Wikipedia · parent_cartridge
- Secondary .378 Weatherby Magnum - Ballistic Studies · parent_cartridge
Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 20 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →