Load Data for .257 Weatherby Magnum


 
Bullet: 117 gr SPBT  (HDY)
Diameter: 0.257"
 
Powder: IMR 7828 (Improved Military Rifle)
Starting Powder:  
Max Powder: 70.0 gr
 
Primer: FED 215
 
Case: Weatherby
Trim Length: 2.535"
 
Cartridge Overall Length: 3.220"
 
Starting Velocity:  
Starting Pressure:  
Max Velocity: 3,390
Max Pressure: 52,600 CUP
 
Barrel: 26" with 1:10" twist.
 
Source: https://www.hodgdonreloading.com/
 

Printed from Shooter's Reference on 12/21/2024:
https://www.shootersreference.com/reloadingdata/257-weatherby-magnum/