Bullet: 150 gr
Spitzer SP Hot-Cor
(Speer)
Diameter: 0.308"
Powder: IMR 7977 (Improved Military Rifle)
Starting Powder: 111.5 gr
Max Powder: 118.1 gr
Primer: CCI 250 Mag
Case: Weatherby
Trim Length:
Cartridge Overall Length: 3.600"
Starting Velocity: 3,323
Starting Pressure:
Max Velocity: 2,569
Max Pressure:
Source: https://reloadingdata.speer.com/downloads/speer/reloading-pdfs/rifle/30-378_Weatherby_Magnum_150.pdf
Printed from Shooter's Reference on 05/05/2024: