Load Data for .300 Winchester Magnum


 
Bullet: 150 gr Grand Slam SP  (Speer)
Diameter: 0.308"
 
Powder: IMR 4350 (Improved Military Rifle)
Starting Powder: 69.0 gr
Max Powder: 73.0 gr
 
Primer: CCI 250 Mag
 
Case: WIN
Trim Length:  
 
Cartridge Overall Length: 3.285"
 
Starting Velocity: 2,918
Starting Pressure:  
Max Velocity: 3,091
Max Pressure:  
 
 
Source: https://reloadingdata.speer.com/downloads/speer/reloading-pdfs/rifle/300_Winchester_Magnum_150.pdf
 

Printed from Shooter's Reference on 12/30/2024:
https://www.shootersreference.com/reloadingdata/300-winchester-magnum/