Pistol · SAAMI

.38 Short Colt

.38 Short.38 S.C.

The shorter predecessor to the .38 Long Colt, chambered in early Colt double-action revolvers of the 1870s–1880s.

Caliber
0.375″ · 9.525 mm
Introduced
1875
Case
Rimmed
Parent
.38 Long Colt
Primary use
Self-Defense
Status
Limited
Velocity730–800 fps
Energy148–185 ft·lb
Typical grains125 gr
Identity
Introduced
1875
Type
Pistol
Origin
United States
Inventor
Colt's Manufacturing Company
Manufacturer
Various
Standard
SAAMI
Status
Limited
Availability
Specialty
Build
Case capacity
10 gr H₂O
Twist (typical)
1:18.75
Primer
Small Pistol
Case type
Rimmed
Pressure & range
Max pressure
13,000 psi
Eff. range
25 yd
Max range
75 yd
Recoil
2.5–4 ft·lb
Subsonic
Capable

Ballistics

Real trajectory computed from a representative load — Fiocchi Shooting Dynamics 125 gr, 730 fps, BC 0.145 G1 · 25 yd zero.

overlay up to 2
RangeVelocityEnergyDrop (in)Drop (MOA)
0 yd730148-0.9″
25 yd7141410.0″0.0
50 yd698135-3.4″-6.4
75 yd683129-11.2″-14.2
100 yd668124-23.6″-22.6
125 yd654119-41.0″-31.3
150 yd640114-63.4″-40.4
175 yd626109-91.1″-49.7
200 yd613104-124.4″-59.4

Point-mass G7/G1 drag model, standard atmosphere — within ~2% of reference solvers to 1000 yd; real barrels and conditions vary. Open in Ballistic Compare →

Performance

Best for TargetFiocchi Shooting Dynamics125 gr · LRN · 730 fps · BC 0.145 G1Buy now →

Buy links open .38 Short Colt 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.

Wikipedia · approximate
Measuremmin
Bullet ⌀9.530.375~
Neck ⌀9.630.379
Shoulder ⌀n/a
Shoulder anglen/a
Base ⌀9.630.379
Rim ⌀11.300.445
Belt ⌀n/a
Rim thickness1.520.060
Neck lengthn/a
Case length19.430.765
Overall length30.481.200

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. .38 Short Colt is highlighted below.

Factory loads

In production — 7 active loads across 6 brands. Top 15 shown · see all 20 →.

BrandLoadGrainBulletFPSft·lbBC
FiocchiShooting Dynamics125LRN7301480.145 G1
Ten-XCowboy125RNL730148
FiocchiLead RN125Lead RN730148
Sellier & BellotHistorical125LRN730148
PPUHandgun125LRN730148
MagtechCowboy125LFN730148
Black HillsCowboy125RNL730148
RemingtonLead RN125Lead RN730148
NormaClassic125Lead Round Nose730148
KynochClassic125Lead Round Nose730148
RWSClassic125Lead Round Nose730148
Buffalo ArmsCustom125Lead Round Nose730148
WinchesterLead RN125Lead RN730148
Sellier & BellotSP125Lead Round Nose730148
UMCLead RN125Lead RN730148

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

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.

Lineage

Immediate parent
Root — no documented parent
Direct descendants (1 · 8 total)
Family TreeOpen .38 Short Colt in the interactive cartridge family tree

Connected reference

History

Colt introduced the .38 Short Colt in 1875 for their Model 1877 'Lightning' double-action revolver — one of the first commercially successful DA revolvers made in America. The cartridge was deliberately mild to allow reliable double-action ignition in early DA mechanisms, which produced lighter hammer strikes than single-action designs. The result was a cartridge too weak for serious use. The .38 Long Colt superseded it almost immediately, and the Short Colt faded from military and law enforcement use before the turn of the century. Still technically in SAAMI spec; specialty manufacturers occasionally produce runs for collectors and owners of original Lightning revolvers.

FAQs

What twist rate does .38 Short Colt use?
.38 Short Colt typically uses a 1:18.75 twist rate.
What bullet diameter is .38 Short Colt?
.38 Short Colt uses a 0.375″ (9.525 mm) diameter bullet.
Is .38 Short Colt still in production?
.38 Short Colt is limited; typical availability is specialty.
What is .38 Short Colt used for?
.38 Short Colt is primarily used for self-defense.
What is .38 Short Colt based on?
.38 Short Colt is derived from the .38 Long Colt case.

Sources & provenance

Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 7 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →