Rifle · SAAMI
.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
- Introduced
- 1964
- Type
- Rifle
- Origin
- United States
- Inventor
- Marlin Firearms / Remington
- Manufacturer
- Marlin / Remington
- Standard
- SAAMI
- Status
- Active
- Availability
- Common
- Case capacity
- 62 gr H₂O
- Twist (typical)
- 1:20
- Primer
- Large Rifle
- Case type
- Rimmed
- Max pressure
- 44,000 psi
- Eff. range
- 200 yd
- Max range
- 600 yd
- Recoil
- 20–30 ft·lb
Ballistics
Published velocity/energy data isn't available for .444 Marlin.
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 ⌀ | 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
Being verified
Advertised FPS, energy, and BC are withheld until loads clear verification.
Suitable powders
9 reloading powders listed for .444 Marlin, 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 .444 Marlin
12 models in the database chamber .444 Marlin. Browse all →
Lineage
Connected reference
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 N110, IMR 4227, N120, Leverevolution, among 9 suitable options.
Sources & provenance
- Standard SAAMI — ANSI/SAAMI Z299 — Cartridge & Chamber Drawings archived
- Standard C.I.P. — C.I.P. TDCC — Tables of Dimensions of Cartridges and Chambers
- Standard SAAMI (Sporting Arms and Ammunition Manufacturers' Institute) — ANSI/SAAMI Z299.4 – 2015 (Centerfire Rifle) — Velocity & Pressure / Cartridge & Chamber Drawings · grain_ballistics, representative_gun archived
- Manufacturer Remington — Core-Lokt 444 Marlin, 240 Grain Soft Point (SKU 29475 / R444M) · grain_ballistics, representative_gun archived
- Manufacturer Hornady — 444 Marlin 265 gr FTX LEVERevolution (Item #82744) · grain_ballistics, representative_gun archived
- Manufacturer Hornady — Hornady 2022 Standard Ballistics Chart (PDF) · grain_ballistics, representative_gun
- Manufacturer Buffalo Bore — Heavy .444 Marlin Ammunition — 270 gr. JFN (Item 9C/20) · grain_ballistics, representative_gun
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 →