Superformance® Varmint ammunition delivers muzzle velocity increases of 100 to 200 feet per second from EVERY gun. Accuracy, increased range, flatter trajectory, less wind drift and devastating terminal results are all realized with Superformance® Varmint ammunition.
| Caliber | 257 Roberts |
| Model | Superformance |
| Bullet Weight | 117 gr |
| Rounds Per Box | 20 |
| Casing Material | Brass |
| Application | Performance,Protection |
| Boxes Per Case | 10 |
| Bullet Type | SST |
| Muzzle Energy | 2253 ft lbs |
| Muzzle Velocity | 2945 fps |
| Rating | +P |
