What twist rate does .444 Marlin use?

.444 Marlin typically uses a 1:20 twist rate.

What bullet diameter is .444 Marlin?

.444 Marlin uses a 0.4303″ (10.93 mm) diameter bullet.

Is .444 Marlin still in production?

.444 Marlin is active; typical availability is common.

What is .444 Marlin used for?

.444 Marlin is primarily used for hunting, big game.

What are the best powders for .444 Marlin?

Reloading powders commonly listed for .444 Marlin include IMR 4227, Leverevolution, Reloader 7, H322, among 6 suitable options.

Rifle · SAAMI

.444 Marlin

444 Marlin

Marlin's answer to the .44 Magnum's lever-action popularity, scaled up to rifle power.

Caliber: 0.4303″ · 10.93 mm
Introduced: 1964
Case: Rimmed
Primary use: Hunting, Big Game
Status: Active

Velocity1,900–2,400 fps

Energy1,920–3,110 ft·lb

Typical grains240 · 250 · 265 gr

Identity

Introduced: 1964
Type: Rifle
Origin: United States
Inventor: Marlin Firearms / Remington
Manufacturer: Marlin / Remington
Standard: SAAMI
Status: Active
Availability: Common

Build

Case capacity: 62 gr H₂O
Twist (typical): 1:20
Primer: Large Rifle
Case type: Rimmed

Pressure & range

Max pressure: 44,000 psi
Eff. range: 200 yd
Max range: 600 yd
Recoil: 20–30 ft·lb

Ballistics

Representative trajectory · 100 yd zero0–800 yd

Open in Ballistic Compare ↗

By real loads: 1,550–2,400 fps · 39 loads
Parent case: —

Representative trajectory — modeled from a single velocity input (no published BC for this cartridge yet).

Performance

Best for HuntingWinchester Super-X HP240 gr · HP · 2,400 fpsBuy now →

Buy links open .444 Marlin 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.

CIP TDCC · verified

Measure	mm	in	✓
Bullet ⌀	10.93	0.430	✓
Neck ⌀	11.51	0.453	✓
Shoulder ⌀	n/a
Shoulder angle	n/a
Base ⌀	11.95	0.470	✓
Rim ⌀	13.06	0.514	✓
Belt ⌀	n/a
Rim thickness	1.60	0.063	✓
Neck length	n/a
Case length	56.52	2.225	✓
Overall length	65.28	2.570	~

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. .444 Marlin is highlighted below.

Factory loads

In production — 39 active loads across 14 brands. Top 15 shown · see all 39 →.

Brand	Load	Grain	Bullet	FPS	ft·lb	BC
Winchester	Super-X HP	240	HP	2,400	3,069	—
Remington	Express Core-Lokt SP	240	Core-Lokt SP	2,400	3,069	—
Remington	Express SP	240	SP	2,400	3,069	—
Barnes	VOR-TX	225	TTSX FB	2,400	2,877	—
Cor-Bon	DPX 225gr	225	DPX	2,400	2,877	—
Remington	Core-Lokt	240	PSP	2,350	2,942	—
Remington	Core-Lokt SP	240	Core-Lokt SP	2,350	2,942	—
Remington	Core-Lokt SP 240gr	240	Core-Lokt SP	2,350	2,942	—
Winchester	Super-X Power-Point SP	240	Power-Point SP	2,350	2,942	—
Federal	Fusion SP	240	Fusion SP	2,350	2,942	—
Federal	Power-Shok SP	240	SP	2,350	2,942	—
Federal	Power-Shok SP 240gr	240	SP	2,350	2,942	—
Nosler	Custom Trophy Grade Partition 250gr	250	Partition	2,350	3,065	—
Hornady	LEVERevolution FTX	265	FTX	2,325	3,180	—
Cor-Bon	Hunter	265	FTX	2,325	3,180	—

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

Suitable powders

6 reloading powders listed for .444 Marlin, fastest to slowest. Cross-reference in the finder →

IMR 4227 Leverevolution Reloader 7 H322 IMR 3031 H380

Reloading costestimate cost per round vs factory

Estimate your cost per round and how it compares to factory. Inputs are yours — nothing is stored.

Powder $/lbCharge (gr)Bullet $/eaPrimer $/eaBrass reusesBrass $/ea

Cost estimate only — not load data. Charge weight is your input; follow published manuals for safe charges.

Firearms chambered in .444 Marlin

12 models in the database chamber .444 Marlin. Browse all →

Marlin Marlin Model 444 Marlin .444 MarlinMarlin Marlin Model 444 Dark .444 MarlinRuger Marlin 444CVA Scout 350 Legend Single ShotMarlin Firearms Model 444XLR .444 Marlin 24-inchMagnum Research BFR .444 MarlinMagnum Research Magnum Research BFR .45-70 Govt 10-inchMarlin Model 1895 45-70 Gov 22-inchMarlin Model 444 SporterMarlin Model 1895 444 Marlin 24-inchMarlin Model 444 MarlinMarlin Firearms 444

Lineage

Immediate parent

Root — no documented parent

Direct descendants (3)

.338 JDJ .375 JDJ .309 JDJ

Family TreeOpen .444 Marlin in the interactive cartridge family tree↗

Connected reference

Loads39 factory loads for .444 Marlin↗Reloading6 suitable powders — cross-reference↗FirearmsFirearms in .444 Marlin↗ToolCompare ballistics↗

History

Introduced by Marlin and Remington in 1964 for the Marlin 336. Designed as a more powerful alternative to .44 Magnum in lever-action rifles. Uses the same bullet diameter as .44 Magnum but in a much longer case.

FAQs

What twist rate does .444 Marlin use?: .444 Marlin typically uses a 1:20 twist rate.
What bullet diameter is .444 Marlin?: .444 Marlin uses a 0.4303″ (10.93 mm) diameter bullet.
Is .444 Marlin still in production?: .444 Marlin is active; typical availability is common.
What is .444 Marlin used for?: .444 Marlin is primarily used for hunting, big game.
What are the best powders for .444 Marlin?: Reloading powders commonly listed for .444 Marlin include IMR 4227, Leverevolution, Reloader 7, H322, among 6 suitable options.

Sources & provenance

Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 39 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →