+P
Bullet: 100 gr
HP
(Speer)
Diameter: 0.257"
Powder: Reloder 17 (Alliant Powder)
Starting Powder: 40.6 gr
Max Powder: 45.1 gr
Primer: FED 210
Case: FED
Trim Length: 2.223"
Cartridge Overall Length: 2.760"
Starting Velocity: 2,750
Starting Pressure:
Max Velocity: 3,050
Max Pressure:
Source: https://reloadingdata.speer.com/Downloads/speer/ReloadingPdfs/257-roberts-p-with-100-gr-hppdf.pdf
Printed from Shooter's Reference on 11/23/2024: