Lindcott Armory Rimfire · Proprietary
4mm Flobert
Miniature European parlor/training cartridge; the smallest commercially produced Flobert cartridge, used in indoor gallery pistols and training arms..
- Caliber
- 0.1772″ · 4.5 mm
- Introduced
- 1880
- Case
- Rimmed
- Status
- Active
- Introduced
- 1880
- Type
- Rimfire
- Origin
- Germany
- Inventor
- Louis-Nicolas Flobert
- Standard
- Proprietary
- Status
- Active
- Availability
- Rare
- Primer
- Rimfire
- Case type
- Rimmed
- Eff. range
- 25 yd
Ballistics
- 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.
SAAMI · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 4.50 | 0.177 | · |
| Neck ⌀ | 4.60 | 0.181 | ~ |
| Shoulder ⌀ | n/a | ||
| Shoulder angle | n/a | ||
| Base ⌀ | 4.60 | 0.181 | · |
| Rim ⌀ | 5.90 | 0.232 | · |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.00 | 0.039 | · |
| Neck length | n/a | ||
| Case length | 8.20 | 0.323 | · |
| Overall length | 10.80 | 0.425 | · |
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. 4mm Flobert is highlighted below.
Connected reference
History
The 4mm Flobert is the smallest commercially produced Flobert cartridge, used in European salon pistols and training arms. Like all Flobert cartridges it uses only the primer compound as propellant. Still produced in limited quantities by European makers for collector arms and indoor gallery use.
FAQs
- What bullet diameter is 4mm Flobert?
- 4mm Flobert uses a 0.1772″ (4.5 mm) diameter bullet.
- Is 4mm Flobert still in production?
- 4mm Flobert is active; typical availability is rare.
Sources & provenance
- ManufacturerSellier & Bellot — 4 mm Randz Court (rimfire ammunition product/datasheet) · velocity, grain weights, bullet ⌀archived
- SecondaryWikipedia (pointer) — 4 mm Flobert Short · velocity, grain weights, bullet ⌀archived
- SecondaryMunicion.org — 4 mm Flobert Short casearchived
Data & sources. Specs compiled from the Lindcott Armory reference; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →