Rifle · SAAMI

.416 Weatherby Magnum

.416 Wby Mag.416 Weatherby

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
Velocity2,500–2,700 fps
Energy4,856–6,474 ft·lb
Typical grains350 · 400 gr
Identity
Introduced
1989
Type
Rifle
Origin
United States
Inventor
Roy Weatherby
Manufacturer
Weatherby
Standard
SAAMI
Status
Active
Availability
Common
Build
Case capacity
130 gr H₂O
Twist (typical)
1:14
Primer
Large Rifle Magnum
Case type
Belted
Pressure & range
Max pressure
65,000 psi
Eff. range
300 yd
Max range
700 yd
Recoil
55–75 ft·lb

Ballistics

Real trajectory computed from a representative load — Weatherby Select Plus 400 gr, 2,700 fps, BC 0.435 G1 · 100 yd zero.

overlay up to 2
RangeVelocityEnergyDrop (in)Drop (MOA)
0 yd26996471-1.5″
100 yd258759410.0″0.0
200 yd24765443-3.7″-1.8
300 yd23674977-13.0″-4.2
400 yd22604537-28.6″-6.8
500 yd21564126-51.1″-9.8
600 yd20533743-80.9″-12.9
700 yd19523384-119.1″-16.2
800 yd18543052-166.3″-19.8

Point-mass G7/G1 drag model, standard atmosphere — within ~2% of reference solvers to 1000 yd; real barrels and conditions vary. Open in Ballistic Compare →

Performance

Best for HuntingWeatherby Select Plus400 gr · Nosler AccuBond · 2,700 fps · BC 0.435 G1Buy now →

Buy links open .416 Weatherby Magnum ammunition at Rivertown Munitions.

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
Measuremmin
Bullet ⌀10.570.416
Neck ⌀11.280.444
Shoulder ⌀14.250.561
Shoulder angle
Base ⌀14.780.582
Rim ⌀14.710.579
Belt ⌀15.330.604
Rim thickness1.240.049~
Neck length9.960.392
Case length73.992.913
Overall length95.253.750

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

In production — 20 active loads across 11 brands. Top 15 shown · see all 20 →.

BrandLoadGrainBulletFPSft·lbBC
BarnesVOR-TX400TTSX BT2,7006,4740.370 G1
WeatherbySelect Plus400Nosler AccuBond2,7006,4740.435 G1
WeatherbySelect Plus Barnes TTSX400TTSX2,7006,4740.370 G1
FederalTrophy Bonded350Trophy Bonded Bear Claw2,8006,092
NormaSoft Point350Soft Point2,8006,092
RemingtonCore-Lokt350Core-Lokt2,8006,092
WeatherbySelect Plus400Hornady FMJ-RN2,7006,474
NormaOryx400Oryx2,7006,474
NoslerTrophy Grade Partition400Partition2,7006,474
HornadyDGX Bonded400DGX Bonded2,7006,474
WoodleighWeldcore400PP SP2,7006,474
FederalTrophy Bonded400Trophy Bonded Bear Claw2,7006,474
SwiftA-Frame400A-Frame SP2,7006,474
HornadyDGX Bonded400DGX2,7006,474
WeatherbySelect Plus Hornady DGX FP400DGX FP2,7006,474

Velocities are manufacturer-stated (test-barrel). Discontinued loads dimmed.

Suitable powders

3 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 →

Weatherby Weatherby Mark V Dangerous Game .375 H&H 26-inchWeatherby Mark V Accumark 416 Wby MagWeatherby Mark V Safari .416 Wby Mag 26-inchWeatherby Mark V Safari .416 Wby MagWeatherby Mark V .416 Wby MagWeatherby Weatherby Mark V .416 Wby Mag 26-inchWeatherby Mark V Safari Custom .375 H&HWeatherby Mark V SafariWeatherby Mark VWeatherby Mark V Safari .375 H&H Mag 24-inchWeatherby Weatherby Mark V .375 H&H 26-inchWeatherby Mark V Deluxe .257 Wby Mag

Lineage

Immediate parent
Family TreeOpen .416 Weatherby Magnum in the interactive cartridge family tree

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 Reloader 25, H870, Reloader 33.

Sources & provenance

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 →