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Lindcott Armory

Rifle · SAAMI

.350 Legend

Also known as .350 Leg

Modern straight-wall cartridge for AR-15 platform.

Caliber
0.357″ · 9.068 mm
Introduced
2019
Case
Rimless
Parent
.223 Remington
Primary use
Hunting
Status
Active

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VelocityBeing verified
EnergyBeing verified
Typical grains160 · 170 · 180 gr
Identity
Introduced
2019
Type
Rifle
Origin
United States
Inventor
Winchester
Manufacturer
Winchester Ammunition
Standard
SAAMI
Status
Active
Availability
Common
Build
Case capacity
36 gr H₂O
Twist (typical)
1:16
Primer
Small Rifle
Case type
Rimless
Pressure & range
Max pressure
55,000 psi
Eff. range
250 yd
Recoil
8–12 ft·lb
Subsonic
Capable

Introduced by Winchester Ammunition

Ballistics

Published velocity/energy data isn't available for .350 Legend. Parent case: .223 Remington.

Performance

Best for Withheld until verified
Best for Withheld until verified
Dimensionscase measurements · scale drawing · size vs familiar rounds

Case dimensions — the scale drawing at the top of the page is built from these.

SAAMI · verified
Measuremmin✓
Bullet ⌀ 9.070.357 ✓
Neck ⌀ 9.600.378 ✓
Shoulder ⌀ n/a
Shoulder angle n/a
Base ⌀ 9.910.390 ✓
Rim ⌀ 9.600.378 ✓
Belt ⌀ n/a
Rim thickness 1.140.045 ✓
Neck length n/a
Case length 43.431.710 ✓
Overall length 57.402.260 ~

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. .350 Legend is highlighted below.

Factory loads

Verification

Being verified

Advertised FPS, energy, and BC are withheld until loads clear verification.

Suitable powders

1 reloading powder listed for .350 Legend, fastest to slowest. Cross-reference in the finder →

Leverevolution
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 .350 Legend

12 models in the database chamber .350 Legend. Browse all →

S&W Model 350 .350 LegendChristensen Arms Mesa HunterHenry Repeating Arms Side Gate 350 LegendMossberg Patriot Standout .308 Win 22-inchHowa Mini Action 350 LegendHenry Repeating Arms Henry Side Gate .350 Legend 16.5-inchRuger Precision Rifle .350 Legend 20-inchHenry Repeating Arms Long Ranger .350 LegendSavage Arms Impulse Hog HunterBravo Company Manufacturing RECCE-16 .350 Legend 16-inchSpringfield Armory SAINT Victor .350 Legend 16-inchRuger American Go Wild

Lineage

Immediate parent
.223 Remington
Family TreeOpen .350 Legend in the interactive cartridge family tree

Connected reference

Loads63 factory loads for .350 LegendReloading1 suitable powder — cross-referenceFirearmsFirearms in .350 Legend

History

Introduced by Winchester in 2019 specifically for states requiring straight-wall cartridges. Instant success due to AR-15 compatibility and excellent ballistics. Fastest-adopted deer cartridge in decades.

FAQs

What twist rate does .350 Legend use?
.350 Legend typically uses a 1:16 twist rate.
What bullet diameter is .350 Legend?
.350 Legend uses a 0.357″ (9.068 mm) diameter bullet.
Is .350 Legend still in production?
.350 Legend is active; typical availability is common.
What is .350 Legend used for?
.350 Legend is primarily used for hunting.
What is .350 Legend based on?
.350 Legend is derived from the .223 Remington case.
What are the best powders for .350 Legend?
Reloading powders commonly listed for .350 Legend include Leverevolution.

Sources & provenance

Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 63 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →