.257 Roberts
Rifle
Factory
| Family | Remington Arms cartridges |
|---|---|
| Designer | Ned Roberts |
| Year | 1934 |
| Case Type | Rimless, Bottlenecked |
| Primer | Large Rifle (.210") |
Dimensions (inches)
| Bullet Ø | 0.257 |
|---|---|
| Case Length | 2.233 |
| Neck Ø | 0.29 |
| Base Ø | 0.473 |
| Rim Ø | 0.473 |
| Total Length | 2.74 |
Parent Cases
7 x 57 mm Mauser
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