Load Data for .300 WSM (Winchester Short Magnum)


 
Bullet: 150 gr GSSP  (Speer)
Diameter: 0.308"
 
Powder: StaBALL 6.5 (Winchester)
Starting Powder: 66.5 gr
Max Powder: 72.5 gr
 
Primer: WIN WLRM
 
Case: WIN
Trim Length: 2.090"
 
Cartridge Overall Length: 2.780"
 
Starting Velocity: 3,060
Starting Pressure: 49,800
Max Velocity: 3,357
Max Pressure: 64,000
 
Barrel: 24" with 1:10" twist.
 
Source: https://www.hodgdonreloading.com/
 

Printed from Shooter's Reference on 04/27/2024:
https://www.shootersreference.com/reloadingdata/300-wsm-winchester-short-magnum/