Load Data for .300 Winchester Magnum


 
Bullet: 180 gr MT-SP  (Speer)
Diameter: 0.308"
 
Powder: IMR 7828 (Improved Military Rifle)
Starting Powder: 73.0 gr
Max Powder: 78.5 gr
 
Primer: WIN WLRM
 
Case: WIN
Trim Length: 2.610"
 
Cartridge Overall Length: 3.285"
 
Starting Velocity: 2,770
Starting Pressure: 49,700
Max Velocity: 3,034
Max Pressure: 62,000
 
Compressed
Barrel: 24" with 1:10" twist.
 
Source: https://www.hodgdonreloading.com/
 

Printed from Shooter's Reference on 12/21/2024:
https://www.shootersreference.com/reloadingdata/300-winchester-magnum/