.303 Magnum
Rifle
Factory
| Family | W.J. Jeffery & Co cartridges |
|---|---|
| Year | 1919 |
| Case Type | Rimless, Bottlenecked |
Dimensions (inches)
| Bullet Ø | 0.312 |
|---|---|
| Case Length | 2.34 |
| Neck Ø | 0.345 |
| Shoulder Ø | 0.462 |
| Base Ø | 0.53 |
| Rim Ø | 0.557 |
| Total Length | 3.25 |
Parent Cases
.276 Enfield
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