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Lindcott Armory

Rifle · SAAMI

.276 Pedersen

Also known as 7x51mm Pedersen

The cartridge that almost replaced .30-06.

Caliber
0.2842″ · 7.219 mm
Introduced
1923
Case
Rimless
Primary use
Military (Historical)
Status
Active

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VelocityBeing verified
EnergyBeing verified
Typical grains125 gr
Identity
Introduced
1923
Type
Rifle
Origin
United States
Inventor
John Pedersen
Manufacturer
J.D. Pedersen / U.S. Military
Standard
SAAMI
Status
Active
Availability
Common
Build
Case capacity
60 gr H₂O
Twist (typical)
1:10
Primer
Large Rifle
Case type
Rimless
Pressure & range
Max pressure
50,000 psi
Eff. range
600 yd
Max range
1500 yd
Recoil
9–13 ft·lb

Ballistics

Published velocity/energy data isn't available for .276 Pedersen.

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.

SAAMI · approximate
Measuremmin
Bullet ⌀ 7.220.284 ·
Neck ⌀ 7.950.313 ·
Shoulder ⌀ 9.780.385 ·
Shoulder angle
Base ⌀ 11.430.450 ·
Rim ⌀ 11.430.450 ·
Belt ⌀ n/a
Rim thickness
Neck length
Case length 51.382.023 ~
Overall length 72.522.855 ~

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. .276 Pedersen is highlighted below.

Missing a dimension for .276 Pedersen? Some case measurements aren't in a published SAAMI/CIP drawing yet. Have a factory or reamer print? Send it → — verified hard-to-find data earns a free Lindcott sticker.

Factory loads

Verification

Being verified

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

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.

Connected reference

History

John Pedersen designed both the cartridge and the semi-automatic rifle to fire it. Army trials from 1925-1932 showed it outperformed .30-06 in many respects. The Army's Ordnance Board recommended adoption. General MacArthur overruled the recommendation, insisting on full-power .30-06. The Garand was redesigned for .30-06 instead.

FAQs

What twist rate does .276 Pedersen use?
.276 Pedersen typically uses a 1:10 twist rate.
What bullet diameter is .276 Pedersen?
.276 Pedersen uses a 0.2842″ (7.219 mm) diameter bullet.
Is .276 Pedersen still in production?
.276 Pedersen is active; typical availability is common.
What is .276 Pedersen used for?
.276 Pedersen is primarily used for military (historical).

Sources & provenance

Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 2 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →