Bullet: 100 gr
Spitzer BTSP
(Speer)
Diameter: 0.257"
Powder: Reloder 33 (Alliant Powder)
Starting Powder: 74.5 gr
Max Powder: 82.8 gr
Primer: CCI 250 Mag
Case: Weatherby
Trim Length: 2.539"
Cartridge Overall Length: 3.150"
Starting Velocity: 3,067
Starting Pressure:
Max Velocity: 3,477
Max Pressure:
Compressed
Source: https://reloadingdata.speer.com/Downloads/speer/ReloadingPdfs/257-weatherby-magnum-with-100gr-spitzer-sp-hot-corpdf.pdf
Printed from Shooter's Reference on 12/21/2024: