Load Data for .300 Winchester Magnum


 
Bullet: 230 gr TACT  (Berger Bullets)
Diameter: 0.308"
 
Powder: Retumbo (Hodgdon)
Starting Powder: 71.6 gr
Max Powder: 77.0 gr
 
Primer: WIN WLRM
 
Case: WIN
Trim Length: 2.610"
 
Cartridge Overall Length: 3.395"
 
Starting Velocity: 2,520
Starting Pressure: 44,700
Max Velocity: 2,714
Max Pressure: 55,200
 
Compressed
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/