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Lindcott Armory Lindcott Armory
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Rifle · CIP

7mm Mauser

Also known as 7x57mm · 7x57mm Mauser

Classic African hunting cartridge beloved by professional hunters.

Caliber
0.2854″ · 7.25 mm
Introduced
1892
Case
Rimless
Primary use
Military, Hunting
Status
Active

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VelocityBeing verified
EnergyBeing verified
Typical grains139 · 140 · 173 gr
Identity
Introduced
1892
Type
Rifle
Origin
Germany
Inventor
Paul Mauser
Manufacturer
DWM
Standard
CIP
Status
Active
Availability
Common
Build
Case capacity
60 gr H₂O
Twist (typical)
1:8.75
Primer
Large Rifle
Case type
Rimless
Pressure & range
Max pressure
51,000 psi, SAAMI transducer
Eff. range
550 yd
Max range
4000 yd
Recoil
12–16 ft·lb

Ballistics

Published velocity/energy data isn't available for 7mm Mauser.

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.

CIP TDCC · approximate
Measuremmin✓
Bullet ⌀ 7.250.285 ~
Neck ⌀ 8.250.325 ✓
Shoulder ⌀ 10.920.430 ✓
Shoulder angle 20.5°— ✓
Base ⌀ 12.010.473 ✓
Rim ⌀ 12.100.476 ✓
Belt ⌀ n/a
Rim thickness 1.150.045 ✓
Neck length 9.590.378 ≈
Case length 57.002.244 ✓
Overall length 78.003.071 ✓

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. 7mm Mauser is highlighted below.

Factory loads

Verification

Being verified

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

Suitable powders

15 reloading powders listed for 7mm Mauser, fastest to slowest. Cross-reference in the finder →

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 7mm Mauser

John Rigby & Co. Rigby M98 .275 Rigby 24-inchRuger No.1 RSI International .243Musgrave Musgrave RSM .308 Win 26-inchRuger No.1-A Light Sporter 7x57Ruger No. 1 Light Sporter 7x57mm 22-inchRuger No.1-A Light Sporter .30-06Ruger No.1-A Light Sporter .270Ruger No. 1 Light Sporter .243 WinJohn Rigby & Co. Thin Game .275 Rigby 24-inchJohn Rigby & Co. Thin Game 7x57mm 24-inchRuger No. 1 Light SporterRuger No. 1 International

Lineage

Immediate parent
Root — no documented parent
Family TreeOpen 7mm Mauser in the interactive cartridge family tree

Connected reference

History

Designed by Paul Mauser in 1892 and adopted by Spain in 1893. Proved devastatingly effective in Spanish-American War, leading US to adopt .30-06. Famous as the cartridge used by W.D.M. Bell to take over 1,000 elephants with precise shot placement. Marketed as .275 Rigby in Britain. Still highly regarded for hunting.

FAQs

What twist rate does 7mm Mauser use?
7mm Mauser typically uses a 1:8.75 twist rate.
What bullet diameter is 7mm Mauser?
7mm Mauser uses a 0.2854″ (7.25 mm) diameter bullet.
Is 7mm Mauser still in production?
7mm Mauser is active; typical availability is common.
What is 7mm Mauser used for?
7mm Mauser is primarily used for military, hunting.
What are the best powders for 7mm Mauser?
Reloading powders commonly listed for 7mm Mauser include AR 2208, IMR 3031, N135, 203-B, among 15 suitable options.

Sources & provenance

Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 49 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →

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