117.0 gr. Sierra SPT Pro-Hunter (1640) - .257

Manufacturer Sierra
Model SPT Pro-Hunter
Model Number 1640
Caliber .257
Weight 117.0 gr.
Sectional Density 0.253
No bullet image@2x

117.0 gr. Sierra SPT Pro-Hunter (1640) - .257

Deflection at 600 and 1,000 yards in a 10mph cross wind.

Drag Profiles

Data Source Drag Function BC Form Factor
Sierra G1

0.362 below 1,800 fps

0.383 between 1,800 fps and 2,500 fps

0.388 above 2,500 fps