Load Data for .458 Winchester Magnum


 
Bullet: 510 gr SP  (WIN)
Diameter: 0.457"
 
Powder: 748 (Winchester)
Starting Powder:  
Max Powder: 75.0 gr
 
Primer: CCI 250 Mag
 
Case: WIN
Trim Length: 2.490"
 
Cartridge Overall Length: 3.340"
 
Starting Velocity:  
Starting Pressure:  
Max Velocity: 2,065
Max Pressure: 41,000 CUP
 
Barrel: 24" with 1:14" twist.
 
Source: https://www.hodgdonreloading.com/
 

Printed from Shooter's Reference on 12/21/2024:
https://www.shootersreference.com/reloadingdata/458-winchester-magnum/