+P
Bullet: 100 gr
HP
(Speer)
Diameter: 0.257"
Powder: 2000-MR (Alliant Powder)
Starting Powder: 42.0 gr
Max Powder: 46.7 gr
Primer: FED 210
Case: FED
Trim Length: 2.223"
Cartridge Overall Length: 2.760"
Starting Velocity: 2,762
Starting Pressure:
Max Velocity: 3,062
Max Pressure:
Compressed
Source: https://reloadingdata.speer.com/Downloads/speer/ReloadingPdfs/257-roberts-p-with-100-gr-hppdf.pdf
Printed from Shooter's Reference on 12/21/2024: