.458×2-inch American
The .458×2-inch American is a belted, straight, .458 caliber (11.6 mm) big-bore cartridge designed by Frank Barnes. It is based on the .458 Winchester Magnum shortened to 2 in (51 mm).
| .458×2 inch American | |
|---|---|
The .458×2-inch is nearly identical to the .450 Marlin (left) except that its belt is the same length as that of the .458 Winchester Magnum (right). | |
| Type | Rifle |
| Place of origin | USA |
| Production history | |
| Designer | Frank Barnes |
| Designed | 1962 |
| Variants | .450 Marlin |
| Specifications | |
| Parent case | .458 Winchester Magnum |
| Case type | Belted, straight |
| Bullet diameter | .458 in (11.6 mm) |
| Neck diameter | .481 in (12.2 mm) |
| Base diameter | .513 in (13.0 mm) |
| Rim diameter | .532 in (13.5 mm) |
| Rim thickness | .050 in (1.3 mm) |
| Case length | 2.000 in (50.8 mm) |
| Case capacity | 73 gr H2O (4.7 cm3) |
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