Bullet: 150 gr
Spitzer SP Hot-Cor
(Speer)
Diameter: 0.308"
Powder: IMR 4831 (Improved Military Rifle)
Starting Powder: 72.0 gr
Max Powder: 76.0 gr
Primer: CCI 250 Mag
Case: WIN
Trim Length:
Cartridge Overall Length: 3.330"
Starting Velocity: 2,915
Starting Pressure:
Max Velocity: 3,118
Max Pressure:
Source: https://reloadingdata.speer.com/downloads/speer/reloading-pdfs/rifle/300_Winchester_Magnum_150.pdf
Printed from Shooter's Reference on 12/21/2024: