Load Data for .257 Weatherby Magnum


 
Bullet: 115 gr TSX  (Barnes)
Diameter: 0.257"
 
Powder: Magnum (Ramshot)
Starting Powder: 67.0 gr
Max Powder: 71.0 gr
 
Primer: FED 215m
 
Case: Weatherby
Trim Length: 2.539"
 
Cartridge Overall Length: 3.170"
 
Starting Velocity: 3,098
Starting Pressure:  
Max Velocity: 3,280
Max Pressure:  
 
Barrel: 24" with 1:10" twist.
 
Source: https://www.barnesbullets.com/wp-content/uploads/2021/05/257WeatherbyMagnum.pdf
 

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