Hunting construction
Soft-point, bonded, partitioned, and monolithic expanding bullets are designed differently. Their intended impact-velocity ranges and use cases come from the bullet or ammunition manufacturer.
THE CARTRIDGE LIBRARY · SPORTING & MATCH RIFLE
7x57 Mauser
A classic 7mm-class bottleneck rifle cartridge with both military and sporting history. The alternate .275 Rigby name can appear in sporting contexts.
2A Ledger reference desk · Sources checked October 18, 2026
Read the dimensions
- Overall · min–max
- 2.850–3.065 in
72.390–77.851 mm - Case length · max
- 2.235 in
56.769 mm - Bullet maximum
- 0.2845 in
7.226 mm - Rim diameter · max
- 0.473 in
12.014 mm
Know the exact name
At a glance
- Cartridge family
- Sporting & match rifle
- Bullet specification
- 0.2845 in / 7.226 mmBullet maximum
- Factory examples
- 1 loadsSelected, sourced examples below
- Weight in cited examples
- 140 grGrains measure mass, not powder charge
7x57 Mauser is identified by its complete cartridge designation. The resource-table alternative is 7 mm Mauser (7 × 57). A caliber number, bullet diameter, or family resemblance on its own does not identify ammunition compatibility.
The .275 Rigby naming relationship does not remove firearm-specific restrictions, particularly for older rifles.
Dimensions: open the exact dimensional drawing ↗. The displayed number is bullet maximum, rather than an assertion that every manufactured projectile or barrel has this exact diameter.
Origins & evolution
Background & development
Mauser developed the 7×57 in 1892, and Spain adopted it as a military cartridge the following year. Its original loading used a heavy round-nose bullet; later sporting and military developments changed the available projectiles without erasing the identity of the case. American forces encountered it during the Spanish-American War of 1898.
The cartridge also developed a major sporting history beyond its military origins. In British sporting trade it became familiar as the .275 Rigby, and W. D. M. Bell’s African hunting helped make that name famous. Its reputation for useful performance with comparatively manageable recoil sustained it in hunting rifles long after many contemporary military cartridges faded. This combination of Spanish service, British sporting identity and international hunting use explains why both the metric Mauser name and the Rigby name remain recognizable. They record different parts of the same cartridge’s commercial and military history.
Historical sources: Sierra: 7x57 Mauser cartridge history ↗
Construction changes the story
Loads, variations & specialty offerings
Match construction
Open-tip match and tipped match bullets prioritize consistency and aerodynamics. A match designation does not by itself mean the projectile was designed for hunting expansion.
Specialty offerings
Lead-free, reduced-recoil, and premium long-range products are separate load designs when offered. Compare the exact SKU, bullet weight, test barrel, and intended role rather than relying on a cartridge-wide average.
In the cited 7x57 Mauser examples, bullet weights are 140 grains. These are the weights actually present in this source selection, not a claim that every possible loading is listed.
Bullet construction background: Hornady: anatomy of a bullet ↗. Exact product descriptions and velocities are cited in the factory table.
From the factory catalog
140 grains
2,680 fps
InterLock® SP
Compare all 1 cited factory load records
| Maker / product | Bullet mass | Published construction | Muzzle velocity | Test barrel | Source |
|---|---|---|---|---|---|
| Hornady8070 | 140 gr 9.07 g | InterLock® SP | 2,680 fps 817 m/s | Not stated here; see source | Hornady · PDF p. 185 ↗ |
Explore the published data
Ballistics you can inspect
Select a legend entry to add or remove its line. Hover or tap a plotted point, or use the position slider. With the graph focused, arrow keys move the inspector. Solid dots identify source points; dashed connectors show estimates between them. Load construction, pressure category, and test setup can differ even at the same grain weight.
Read the original values as accessible tables
7x57 Mauser: factory velocity downrange
| Exact load | Source | Published points |
|---|---|---|
| 140 gr Hornady InterLock® SP | Hornady | 0: 2680; 100: 2456; 200: 2242; 300: 2040; 400: 1848; 500: 1670 |
How to interpret the comparison
Changing bullet weight also often changes bullet design and propellant choice. Two curves are comparisons of the listed products, not a controlled experiment proving that bullet weight alone caused the difference. Catalog downrange points are projections under the maker’s conditions; barrel-study points are recorded observations in the study firearm.
Direct answers
Common questions
What is 7x57 Mauser?
A classic 7mm-class bottleneck rifle cartridge with both military and sporting history. The alternate .275 Rigby name can appear in sporting contexts.
What diameter does 7x57 Mauser use?
The cited dimensional standard lists 0.2845 inches (7.226 mm), bullet maximum. This drawing convention is different from a casual caliber nickname.
Are similarly named cartridges interchangeable?
The .275 Rigby naming relationship does not remove firearm-specific restrictions, particularly for older rifles.
Are the graph values measured or estimated?
The downrange view uses the exact manufacturer catalog records shown in the source table. Dashed connectors and intermediate inspector values use linear interpolation between the displayed source points. Calculated energy uses the listed bullet mass and velocity.
Does higher energy mean the best load?
Energy is calculated from mass and velocity. It does not establish accuracy, expansion, penetration, pattern density, recoil, or suitability for a particular firearm. Use the exact product documentation and firearm manual.
Trace the facts
Sources & methodology
Compiled by 2A Ledger from the linked standards, manufacturer publications, and identified test records. Checked October 18, 2026. Historical tests and older catalogs retain their original dates; a listing here does not establish current availability.
- SAAMI: dimensional drawing · PDF p. 58 ↗
- Sierra: 7x57 Mauser cartridge background ↗
- Hornady · PDF p. 185 ↗
Diameter figures preserve the cited drawing convention. Inch–millimeter conversion uses exactly 25.4 mm per inch. Factory specifications describe the maker’s test setup; your firearm, ammunition lot, temperature, and measuring method can produce different results. This is an educational factory-ammunition reference, not a reloading manual.