| .440 Cor-Bon |
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| Type | Pistol and rifle |
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| Place of origin | United States |
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| Designed | 1997 |
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| Manufacturer | Cor-Bon |
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| Produced | 1998–present |
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| Parent case | .50 AE |
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| Case type | Rebated, bottleneck |
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| Bullet diameter | .429 in (10.9 mm) |
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| Neck diameter | .461 in (11.7 mm) |
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| Shoulder diameter | .529 in (13.4 mm) |
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| Base diameter | .538 in (13.7 mm) |
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| Rim diameter | .510 in (13.0 mm) |
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| Rim thickness | 0.055 in (1.4 mm) |
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| Case length | 1.280 in (32.5 mm) |
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| Overall length | 1.590 in (40.4 mm) |
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| Case capacity | 50.5 gr H2O (3.27 cm3) |
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| Rifling twist | 1 in 18 |
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| Primer type | 0.210 |
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| Maximum pressure (SAAMI) | 36,000 (250 MPa) |
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| Bullet mass/type |
Velocity |
Energy |
| 240 gr (15.55 g) JHP Cor-Bon |
1,800 ft/s (550 m/s) |
1,727 ft⋅lbf (2,341 J) |
| 260 gr (17 g) BCHP Cor-Bon |
1,700 ft/s (520 m/s) |
1,669 ft⋅lbf (2,263 J) |
| 305 gr (20 g) RNPN Cor-Bon |
1,600 ft/s (490 m/s) |
1,734 ft⋅lbf (2,351 J) |
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The .440 Cor-Bon is a large-caliber handgun cartridge, first produced by Cor-Bon in 1998.
Although it looks similar to a .357 SIG, this cartridge was designed after being necked down from an existing cartridge, the .50 AE to accept a .44-caliber (.429 in) (10.89 mm) bullet. This is fairly typical in the wildcat cartridge industry.
