Load Data for .458 Winchester Magnum


 
Bullet: 300 gr HP  (HDY)
Diameter: 0.458"
 
Powder: 2460 (Accurate)
Starting Powder: 70.2 gr
Max Powder: 78.0 gr
 
Primer: FED 215
 
Case: WIN
Trim Length: 2.490"
 
Cartridge Overall Length: 2.940"
 
Starting Velocity: 2,205
Starting Pressure: 32,700
Max Velocity: 2,506
Max Pressure: 36,300
 
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/