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Search matches names, aliases and the text of every page. An arm found by its service designation is found by its alias, not its title.

.444 Marlin

Introduced 1964Marlin Firearms and Remington ArmsCIP standard

Dimensions and pressure

Generated from the schema, like every specification table on this site, so a figure recorded on this entry cannot be missing from the table.

Identity
Designed by
Marlin Firearms and Remington Arms
Introduced
1964
Production
not recorded
Standards body
C.I.P.
Case type
Semi rimmed
Case shape
Straight
Dimensions
Bullet diameter
10.93 mm0.4303 insource

C.I.P. G1, maximum bullet diameter.

Bore diameter
not recorded
Case length
56.52 mm2.225 insource

C.I.P. L3, maximum case length.

Overall length
65.28 mm2.570 insource

C.I.P. L6, maximum cartridge overall length.

Rim diameter
13.06 mm0.5142 insource

C.I.P. R1.

Neck diameter
11.51 mm0.4531 insource

C.I.P. H2.

Base diameter
11.95 mm0.4705 insource

C.I.P. P1.

Pressure
Maximum pressure
355 MPa51,488 psisource

C.I.P. Pmax 3550 bar; 1 bar = 0.1 MPa exactly.

Pressure standard
C.I.P.

SAAMI and C.I.P. measure pressure differently and their figures are not interchangeable, which is why the body is always named beside the figure.

Loads

Velocity is recorded per barrel length as published. A gun page interpolates between these points and never projects beyond them.

Hornady LEVERevolution 265 gr FTX

Hornady

Bullet mass
17.17 g265.0 grsource

Published as 265 grains.

Cartridge mass
not recorded
Bullet type
FTX
G1 BC
not recorded
G7 BC
not recorded
Sourced velocity by barrel length
BarrelVelocity
609.6 mm24.00 in708.7 m/s2,325 fps

Chambered in

Computed from every entry that lists this cartridge. Nothing here is hand-maintained.

No entry on the site is chambered in it yet.

Gallery

A .444 Marlin rifle cartridge standing upright beside a steel ruler, showing a flat-tipped soft-lead bullet with a crimped gas check seated in a long straight brass case.

Image credit

Title
File:444 Marlin with ruler.jpg
Author
Ultratone85(attribution required)
Licence
CC BY-SA 4.0
Source
https://commons.wikimedia.org/wiki/File:444_Marlin_with_ruler.jpg
A .444 Marlin cartridge shown beside a ruler for scale.

Detail

The .444 Marlin is a semi-rimmed, straight-walled rifle cartridge Marlin Firearms and Remington Arms co-developed in 1964 for the Marlin Model 444 lever-action rifle, built to give lever-gun shooters a cartridge with more reach and retained energy than the .30-30 Winchester and .35 Remington then dominant in that class. Its case is essentially a lengthened .44 Magnum, sharing that round’s 10.93 mm bullet diameter but built for a rifle-length action and a substantially higher pressure ceiling.

At a 355 MPa C.I.P. pressure ceiling, it sits well above typical lever-action straight-wall cartridges of its era, trading some of a bottlenecked case’s efficiency for the simple, rimless feeding a tubular magazine and a lever action’s angled bolt face both need. It remains a dedicated big-game round for the same short-to-medium-range lever-action niche it was designed for, now most often loaded with polymer-tipped spitzer-profile bullets safe to stack nose-to-primer in a tubular magazine.

This entry carries the full C.I.P. dimensional standard and one current factory load, Hornady’s LEVERevolution 265-grain FTX rated at 708.7 m/s from a stated 24-inch test barrel. No ballistic coefficient is published on that product page, so the cartridge computes a muzzle energy figure but no trajectory.

References

  1. .444 Marlin · 1323043188 · read 2026-09-01
  2. C.I.P. TDCC datasheet — 444 Marlin · 2002-05-15 · read 2026-09-01
  3. 444 Marlin 265 gr FTX LEVERevolution (product page) · read 2026-09-01

Last verified 2026-09-01 · review status: agent-populated