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Rifle · SAAMI

.30-40 Krag

.30 Army.30 Krag

America's first smokeless powder military rifle cartridge.

Caliber
0.308″ · 7.823 mm
Introduced
1892
Case
Rimmed
Primary use
Military (Historical), Hunting
Status
Active
Velocity2,000–2,500 fps
Energy1,600–2,700 ft·lb
Typical grains150 · 165 · 180 gr
Identity
Introduced
1892
Type
Rifle
Origin
United States
Inventor
U.S. Army
Manufacturer
U.S. Military
Standard
SAAMI
Status
Active
Availability
Common
Build
Case capacity
55 gr H₂O
Twist (typical)
1:10
Primer
Large Rifle
Case type
Rimmed
Pressure & range
Max pressure
40,000 psi
Eff. range
500 yd
Max range
1500 yd
Recoil
12–16 ft·lb
Subsonic
Capable

Ballistics

Real trajectory computed from a representative load — HSM Trophy Gold 168 gr, 2,450 fps, BC 0.266 G7 · 100 yd zero.

overlay up to 2
RangeVelocityEnergyDrop (in)Drop (MOA)
0 yd24492238-1.5″—
100 yd229119570.0″0.0
200 yd21381705-5.1″-2.4
300 yd19901477-17.9″-5.7
400 yd18471272-39.4″-9.4
500 yd17081089-71.2″-13.6
600 yd1575925-114.8″-18.3

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 HuntingHSM Trophy Gold168 gr · Berger VLD · 2,450 fps · BC 0.266 G7Buy now →

Buy links open .30-40 Krag 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 · approximate
Measuremmin✓
Bullet ⌀7.820.308✓
Neck ⌀8.590.338✓
Shoulder ⌀10.740.423~
Shoulder angle21.1°—✓
Base ⌀11.610.457~
Rim ⌀13.840.545✓
Belt ⌀n/a
Rim thickness1.630.064✓
Neck length12.330.485≈
Case length58.782.314✓
Overall length78.463.089✓

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. .30-40 Krag is highlighted below.

Factory loads

In production — 35 active loads across 15 brands. Top 15 shown · see all 51 →.

BrandLoadGrainBulletFPSft·lbBC
HSMTrophy Gold168Berger VLD2,4502,2390.266 G7
BarnesVOR-TX150TTSX BT2,4301,9660.198 G7
NoslerCustom Trophy Grade Partition 180gr180Partition2,4302,3600.474 G1
NoslerCustom180Partition2,4302,3600.474 G1
NoslerTrophy Grade AccuBond180AccuBond2,4302,3600.259 G7
SierraGameKing165BTSP2,5002,289—
BarnesOriginal180Original SP2,4302,360—
HornadyCustom SP180SP2,4302,360—
GrizzlyCartridge Co.180FMJ2,4302,360—
HornadyCustom180InterLock SP2,4302,360—
RemingtonCore-Lokt180Core-Lokt PSP2,4302,360—
HSMSP 180gr180SP2,4302,360—
FiocchiShooting Dynamics180PSP2,4302,360—
Sellier & BellotSP Hunting180SPCE2,4302,360—
RemingtonExpress Core-Lokt SP180Core-Lokt SP2,4302,360—

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

Suitable powders

6 reloading powders listed for .30-40 Krag, fastest to slowest. Cross-reference in the finder →

IMR 3031N135IMR 4895H4895H380IMR 4064
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 .30-40 Krag

12 models in the database chamber .30-40 Krag. Browse all →

Winchester Repeating Arms 1895 Carbine 30-40 KragWinchester Model 1895Ruger No. 3Springfield Armory M1903 Philippine Constabulary .30-40 Krag 22-inchSpringfield Armory Krag M1899 Cavalry CarbineSpringfield Armory Krag-Jorgensen M1898Springfield Armory Krag M1898 .30-40 Krag 30-inchUSA Krag-Jørgensen M1898Springfield Armory Krag M1896Springfield Armory M1892-99 Krag .30 Carbine StdSpringfield Armory Krag M1896 .30-40 Krag 30-inchSpringfield Armory Springfield Krag Carbine .30-40 Krag 22-inch

Connected reference

Loads51 factory loads for .30-40 Krag↗Reloading6 suitable powders — cross-reference↗FirearmsFirearms in .30-40 Krag↗ToolCompare ballistics↗

History

Adopted in 1892 for the Krag-Jorgensen rifle — America's first bolt action military rifle. Saw action in the Spanish-American War and Philippine Insurrection. Replaced by .30-06 Springfield in 1906 after Theodore Roosevelt's forces were outshot by Spanish Mausers.

FAQs

What twist rate does .30-40 Krag use?
.30-40 Krag typically uses a 1:10 twist rate.
What bullet diameter is .30-40 Krag?
.30-40 Krag uses a 0.308″ (7.823 mm) diameter bullet.
Is .30-40 Krag still in production?
.30-40 Krag is active; typical availability is common.
What is .30-40 Krag used for?
.30-40 Krag is primarily used for military (historical), hunting.
What are the best powders for .30-40 Krag?
Reloading powders commonly listed for .30-40 Krag include IMR 3031, N135, IMR 4895, H4895, among 6 suitable options.

Sources & provenance

Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 35 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →