Rifle · Not SAAMI standardized · Not standardizedObsolete
7.5x57mm MAS mod. 1924
7.5x57mm MAS mod.
- Caliber
- 0.3071″ · 7.8 mm
- Introduced
- 1924
- Case
- Rimless
- Parent
- 6.5x55mm Swedish
- Primary use
- Hunting
- Status
- Discontinued
- Obsolete
- Obsolete
- Introduced
- 1924
- Type
- Rifle
- Origin
- France
- Inventor
- France military ordnance (approx)
- Manufacturer
- Manufacture d'armes de Saint-Étienne (MAS)
- Standard
- Not SAAMI standardized · Not standardized
- SAAMI
- Not SAAMI standardized
- Obsolete
- Obsolete
- Status
- Discontinued
- Availability
- Rare
- Case capacity
- 57.7 gr H₂O
- Twist (typical)
- 1:10
- Primer
- Large Rifle
- Case type
- Rimless
- Max pressure
- 27,800 psi, CIP transducer
- Eff. range
- 300 yd
- Max range
- 1500 yd
- Recoil
- 14.8–16.9 ft·lb
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for 7.5x57mm MAS mod. 1924, so this is the shape gravity alone gives the advertised velocity. Drag would steepen it. The tool below solves real loads through their published G1 or G7 model.
Open in Ballistic Compare- Parent case
- 6.5x55mm Swedish
Representative trajectory — modeled from a single velocity input (no published BC for this cartridge yet).
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| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 7.80 | 0.307 | · |
| Neck ⌀ | 8.60 | 0.339 | · |
| Shoulder ⌀ | 11.20 | 0.441 | · |
| Shoulder angle | 17.4° | — | |
| Base ⌀ | 12.20 | 0.480 | · |
| Rim ⌀ | 12.20 | 0.480 | · |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.40 | 0.055 | · |
| Neck length | 8.06 | 0.317 | |
| Case length | 57.60 | 2.268 | · |
| Overall length | 76.72 | 3.020 | |
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. 7.5x57mm MAS mod. 1924 is highlighted below.
Missing a dimension for 7.5x57mm MAS mod. 1924? 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.
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
Connected reference
History
Introduced around 1924, derived from the 6.5x55mm Swedish.
FAQs
- What twist rate does 7.5x57mm MAS mod. 1924 use?
- 7.5x57mm MAS mod. 1924 typically uses a 1:10 twist rate.
- What bullet diameter is 7.5x57mm MAS mod. 1924?
- 7.5x57mm MAS mod. 1924 uses a 0.3071″ (7.8 mm) diameter bullet.
- Is 7.5x57mm MAS mod. 1924 still in production?
- 7.5x57mm MAS mod. 1924 is discontinued; typical availability is rare.
- What is 7.5x57mm MAS mod. 1924 used for?
- 7.5x57mm MAS mod. 1924 is primarily used for hunting.
- What is 7.5x57mm MAS mod. 1924 based on?
- 7.5x57mm MAS mod. 1924 is derived from the 6.5x55mm Swedish case.
Sources & provenance
Data & sources. Specs compiled from the Lindcott Armory reference; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →
