Pistol · Not SAAMI standardized · Not standardizedObsolete
.440 Cor-Bon
.440 Cor-Bon is a rebated bottlenecked pistol cartridge of United States origin.
- Caliber
- 0.429″ · 10.897 mm
- Introduced
- 1998
- Case
- Rebated
- Parent
- .50 AE
- Primary use
- Hunting, Self-Defense
- Status
- Discontinued
- Obsolete
- Obsolete
- Introduced
- 1998
- Type
- Pistol
- Origin
- United States
- Inventor
- Corbon
- Manufacturer
- Cor-Bon
- Standard
- Not SAAMI standardized · Not standardized
- SAAMI
- Not SAAMI standardized
- Obsolete
- Obsolete
- Status
- Discontinued
- Availability
- Rare
- Case capacity
- 43.1 gr H₂O
- Twist (typical)
- 1:18.0
- Primer
- 0.210
- Case type
- Rebated
- Max pressure
- 36,260 psi, SAAMI transducer
- Eff. range
- 50 yd
- Max range
- 250 yd
- Recoil
- 43.9–52 ft·lb
Introduced by Cor-Bon
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for .440 Cor-Bon, 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
- .50 AE
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 ⌀ | 10.90 | 0.429 | · |
| Neck ⌀ | 11.71 | 0.461 | · |
| Shoulder ⌀ | 13.44 | 0.529 | · |
| Shoulder angle | 23° | — | |
| Base ⌀ | 13.66 | 0.538 | · |
| Rim ⌀ | 12.95 | 0.510 | · |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.40 | 0.055 | · |
| Neck length | 5.67 | 0.223 | |
| Case length | 32.51 | 1.280 | · |
| Overall length | 40.39 | 1.590 | · |
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. .440 Cor-Bon is highlighted below.
Missing a dimension for .440 Cor-Bon? 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.
Firearms chambered in .440 Cor-Bon
Lineage
Connected reference
History
Introduced around 1998, derived from the .50 AE.
FAQs
- What twist rate does .440 Cor-Bon use?
- .440 Cor-Bon typically uses a 1:18.0 twist rate.
- What bullet diameter is .440 Cor-Bon?
- .440 Cor-Bon uses a 0.429″ (10.897 mm) diameter bullet.
- Is .440 Cor-Bon still in production?
- .440 Cor-Bon is discontinued; typical availability is rare.
- What is .440 Cor-Bon used for?
- .440 Cor-Bon is primarily used for hunting, self-defense.
- What is .440 Cor-Bon based on?
- .440 Cor-Bon is derived from the .50 AE 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 →
