Load Data for .257 Weatherby Magnum


 
Bullet: 100 gr AFSP  (Swift)
Diameter: 0.257"
 
Powder: LRT (Ramshot)
Starting Powder: 71.8 gr
Max Powder: 79.8 gr
 
Primer: WIN WLR
 
Case: Weatherby
Trim Length: 2.535"
 
Cartridge Overall Length: 3.160"
 
Starting Velocity: 3,064
Starting Pressure: 55,200
Max Velocity: 3,466
Max Pressure: 61,300
 
Barrel: 26" with 1:10" twist.
 
Source: https://www.hodgdonreloading.com/
 

Printed from Shooter's Reference on 12/30/2024:
https://www.shootersreference.com/reloadingdata/257-weatherby-magnum/