Pistol · CIP
7mm Penna
7mm Penna is a rimless straight-walled pistol cartridge of Italy origin.
- Caliber
- 0.2772″ · 7.04 mm
- Introduced
- 2004
- Case
- Rimless
- Parent
- 5.7x28mm FN
- Primary use
- Self-Defense, Target
- Status
- Active
- Introduced
- 2004
- Type
- Pistol
- Origin
- Italy
- Inventor
- Leonardo Penna
- Manufacturer
- Leonardo Penna
- Standard
- CIP
- Status
- Active
- Availability
- Limited
- Case capacity
- 12.6 gr H₂O
- Twist (typical)
- 1:10.0
- Primer
- Small Pistol
- Case type
- Rimless
- Max pressure
- 36,260 psi, CIP transducer
- Eff. range
- 50 yd
- Max range
- 250 yd
- Recoil
- 2.6–6 ft·lb
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for 7mm Penna, 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
- 5.7x28mm FN
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.
CIP TDCC · secondary source| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 7.04 | 0.277 | ✓ |
| Neck ⌀ | 7.90 | 0.311 | · |
| Shoulder ⌀ | n/a | ||
| Shoulder angle | n/a | ||
| Base ⌀ | 7.95 | 0.313 | ✓ |
| Rim ⌀ | 7.95 | 0.313 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.20 | 0.047 | ✓ |
| Neck length | n/a | ||
| Case length | 23.00 | 0.906 | ✓ |
| Overall length | 34.50 | 1.358 | ✓ |
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 Penna 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.
Lineage
Connected reference
History
Introduced around 2004 by Leonardo Penna, derived from the FN 5.7×28mm.
FAQs
- What twist rate does 7mm Penna use?
- 7mm Penna typically uses a 1:10.0 twist rate.
- What bullet diameter is 7mm Penna?
- 7mm Penna uses a 0.2772″ (7.04 mm) diameter bullet.
- Is 7mm Penna still in production?
- 7mm Penna is active; typical availability is limited.
- What is 7mm Penna used for?
- 7mm Penna is primarily used for self-defense, target.
- What is 7mm Penna based on?
- 7mm Penna is derived from the 5.7x28mm FN 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 →
