Pistol · Not SAAMI standardized · Not standardizedObsolete
8mm Bergmann-Simplex
The 8mm Bergmann-Simplex (8mm Bergmann No.
- Caliber
- 0.315″ · 8 mm
- Introduced
- 1901
- Case
- Rimless
- Primary use
- Self-Defense
- Status
- Obsolete
- Obsolete
- Obsolete
- Introduced
- 1901
- Type
- Pistol
- Origin
- Germany
- Inventor
- Theodor Bergmann
- Manufacturer
- Bergmann (approx)
- Standard
- Not SAAMI standardized · Not standardized
- SAAMI
- Not SAAMI standardized
- Obsolete
- Obsolete
- Status
- Obsolete
- Availability
- Collector
- Case capacity
- 10 gr H₂O
- Primer
- Small Pistol
- Case type
- Rimless
- Eff. range
- 25 yd
- Max range
- 1700 yd
- Recoil
- 1.3–1.5 ft·lb
- Subsonic
- Capable
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for 8mm Bergmann-Simplex, 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
- —
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| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 8.00 | 0.315 | |
| Neck ⌀ | 8.60 | 0.339 | |
| Shoulder ⌀ | — | — | |
| Shoulder angle | — | — | |
| Base ⌀ | 9.05 | 0.356 | |
| Rim ⌀ | 9.05 | 0.356 | |
| Belt ⌀ | — | — | |
| Rim thickness | — | — | |
| Neck length | — | — | |
| Case length | 18.00 | 0.709 | |
| Overall length | 25.00 | 0.984 |
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. 8mm Bergmann-Simplex is highlighted below.
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
Bergmann moved from tapered bottleneck designs to a straight rimless case.
FAQs
- What bullet diameter is 8mm Bergmann-Simplex?
- 8mm Bergmann-Simplex uses a 0.315″ (8 mm) diameter bullet.
- Is 8mm Bergmann-Simplex still in production?
- 8mm Bergmann-Simplex is obsolete; typical availability is collector.
- What is 8mm Bergmann-Simplex used for?
- 8mm Bergmann-Simplex is primarily used for self-defense.
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 →
