Load Data for .257 Weatherby Magnum


 
Bullet: 85 gr BT  (NOS)
Diameter: 0.257"
 
Powder: LRT (Ramshot)
Starting Powder: 76.5 gr
Max Powder: 84.9 gr
 
Primer: WIN WLR
 
Case: Weatherby
Trim Length: 2.535"
 
Cartridge Overall Length: 3.240"
 
Starting Velocity: 3,222
Starting Pressure: 54,900
Max Velocity: 3,638
Max Pressure: 61,000
 
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/