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Rimfire · Not SAAMI standardized · Not standardizedObsolete

.44 Henry Rimfire

The original metallic rimfire cartridge for the Henry rifle, adopted by the Union Army during the Civil War.

Caliber
0.446″ · 11.328 mm
Introduced
1860
Case
Rimfire
Primary use
Military/LE
Status
Discontinued
Obsolete
Obsolete

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VelocityBeing verified
EnergyBeing verified
Typical grains216 gr
Identity
Introduced
1860
Type
Rimfire
Origin
United States
Inventor
B. Tyler Henry / Winchester
Manufacturer
New Haven Arms / Winchester
Standard
Not SAAMI standardized · Not standardized
SAAMI
Not SAAMI standardized
Obsolete
Obsolete
Status
Discontinued
Availability
Collector
Build
Case capacity
22.5 gr H₂O
Twist (typical)
1:36
Primer
Rimfire
Case type
Rimfire
Pressure & range
Max pressure
18,000 CUP, SAAMI crusher
Eff. range
100 yd
Max range
2600 yd
Recoil
3.4–3.8 ft·lb
Subsonic
Capable

Ballistics

Published velocity/energy data isn't available for .44 Henry Rimfire — an obsolete/collector cartridge.

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.

Wikipedia · approximate
Measuremmin✓
Bullet ⌀ 11.330.446 ·
Neck ⌀ 11.020.434 ·
Shoulder ⌀ n/a
Shoulder angle n/a
Base ⌀ 11.200.441 ·
Rim ⌀ 13.160.518 ·
Belt ⌀ n/a
Rim thickness 1.570.062 ·
Neck length n/a
Case length 22.940.903 ~
Overall length 34.161.345 ·

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. .44 Henry Rimfire is highlighted below.

Factory loads

Verification

Being verified

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

Firearms chambered in .44 Henry Rimfire

Henry Repeating Arms Original Henry .44 Henry Rimfire 24-inchNavy Arms Henry Military Rifle 44 RimfireSmith & Wesson Model No. 3 American First Model 44 RFWinchester Repeating Arms Winchester Model 1866 .44 Rimfire 24-inchWinchester Model 1866 .44 Henry RimfireWinchester Winchester Model 1866New Haven Arms Company Winchester Henry Rifle .44 Rimfire 24-inchNew Haven Arms Company Henry Rifle 1860Henry Henry Rifle .44 Henry Rimfire

Lineage

Immediate parent
Root — no documented parent
Related
.44 Henry · Same cartridge, alternate name
Family TreeOpen .44 Henry Rimfire in the interactive cartridge family tree

History

Benjamin Henry developed this rimfire cartridge for the Henry Repeating Rifle in 1860. Used during the Civil War, it gave Union soldiers 16-shot capability that shocked Confederate troops. Evolved into the .44-40 Winchester as the Henry became the Winchester Model 1866. The first truly effective repeating rifle cartridge.

FAQs

What twist rate does .44 Henry Rimfire use?
.44 Henry Rimfire typically uses a 1:36 twist rate.
What bullet diameter is .44 Henry Rimfire?
.44 Henry Rimfire uses a 0.446″ (11.328 mm) diameter bullet.
Is .44 Henry Rimfire still in production?
.44 Henry Rimfire is discontinued; typical availability is collector.
What is .44 Henry Rimfire used for?
.44 Henry Rimfire is primarily used for military/le.

Sources & provenance

Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 1 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →

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