| .257 Roberts | ||||
| Index No. | Wt. (grs.) | Bullet Style | Primer No. |
Barrel Length |
| R257 | 117 | Soft Point Core-Lokt¨ | 9 1/2 | 24" |
| Velocity (ft./sec.) | ||||||
| Cartridge | Muzzle |
100 yds. |
200 yds. |
300 yds. |
400 yds. |
500 yds. |
| 117 SPCL | 2650 | 2291 | 1961 | 1663 | 1404 | 1199 |
| Energy (ft.-lbs.) | ||||||
| Cartridge | Muzzle |
100 yds. |
200 yds. |
300 yds. |
400 yds. |
500 yds. |
| 117 SPCL | 1824 | 1363 | 999 | 718 | 512 | 373 |
| Short-RangeÕ Trajectory * | ||||||
| Cartridge |
50 yds. |
100 yds. |
150 yds. |
200 yds. |
250 yds. |
300 yds. |
| 117 SPCL | -0.1 | zero | -1.3 | -4.1 | -8.7 | -15.3 |
| Long RangeÓ Trajectory * | |||||||
| Cartridge |
100 yds. |
150 yds. |
200 yds. |
250 yds. |
300 yds. |
400 yds. |
500 yds. |
| 117 SPCL | 2.0 | 1.8 | zero | -4.1 | -11.7 | -36.1 | -78.2 |
Note 1: Bullet does not rise more than 1" above line of sight from
muzzle to sighting-in range.
Note 2: Bullet does not rise more than 3" above line of sight from muzzle to sighting-in range.
* Inches above or below line of sight. Hold low for positive numbers, high for negative numbers.