Bullet: 87 gr
TNT HP
(Speer)
Diameter: 0.257"
Powder: Reloder 25 (Alliant Powder)
Starting Powder: 69.0 gr
Max Powder: 73.0 gr
Primer: CCI 250 Mag
Case: FED
Trim Length: 2.539"
Cartridge Overall Length: 3.170"
Starting Velocity: 3,427
Starting Pressure:
Max Velocity: 3,670
Max Pressure:
Compressed
Source: https://reloadingdata.speer.com/Downloads/speer/ReloadingPdfs/257-weatherby-magnum-with-87-gr-spitzer-sp-hot-corpdf.pdf
Printed from Shooter's Reference on 11/21/2024: