4 of 4 .257 Roberts factory loads carry 250 ft·lb and expansion velocity for coyote; the best reach 1,000 yd (Hornady Superformance 117 gr SST). Ranked, with the drop chart for each.
| Load | gr | Max ethical yd | MV fps | 500 yd ft·lb | Shoulder shot |
|---|---|---|---|---|---|
| Hornady Superformance 117 gr SST | 117 | 1,000 | 2,946 | 888 | behind the shoulder only |
| Winchester 117 gr Power-Point | 117 | 700 | 2,780 | 403 | behind the shoulder only |
| Remington 117 gr Core-Lokt Soft Point | 117 | 650 | 2,650 | 364 | behind the shoulder only |
| Nosler Trophy Grade 110 gr AccuBond | 110 | 600 | 3,050 | 970 | yes |
Predator-size animals: 200–300 ft·lb is the quoted band. Placement is everything on a 5″ chest. Floor used: 250 ft·lb at impact plus the bullet's published expansion velocity. Orange = a target or varmint bullet (construction, not energy); red = never carries the energy. Sources: www.grandviewoutdoors.com.