Bullet: 115 gr
TSX
(Barnes)
Diameter: 0.257"
Powder: IMR 7828 SSC (Improved Military Rifle)
Starting Powder: 59.5 gr
Max Powder: 63.5 gr
Primer: FED 215m
Case: Weatherby
Trim Length: 2.539"
Cartridge Overall Length: 3.170"
Starting Velocity: 3,063
Starting Pressure:
Max Velocity: 3,219
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: