Load Data for .257 Weatherby Magnum


 
Bullet: 70 gr Blitz King" (BK)  (Sierra)
Diameter: 0.257"
 
Powder: 4350 (Accurate)
Starting Powder: 64.4 gr
Max Powder: 71.5 gr
 
Primer: WIN WLR
 
Case: Weatherby
Trim Length: 2.535"
 
Cartridge Overall Length: 3.170"
 
Starting Velocity: 3,407
Starting Pressure: 55,400
Max Velocity: 3,863
Max Pressure: 61,600
 
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/