Load Data for .300 Winchester Magnum


 
Bullet: 165 gr SP  (Speer)
Diameter: 0.308"
 
Powder: Supreme 780 (Winchester)
Starting Powder: 74.7 gr
Max Powder: 79.5 gr
 
Primer: WIN WLRM
 
Case: WIN
Trim Length: 2.610"
 
Cartridge Overall Length: 3.340"
 
Starting Velocity: 2,941
Starting Pressure: 52,100
Max Velocity: 3,125
Max Pressure: 61,800
 
Barrel: 24" with 1:10" twist.
 
Source: https://www.hodgdonreloading.com/
 

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