Load Data for .338 - 378 Weatherby Magnum


 
Bullet: 300 gr HPBT  (Sierra)
Diameter: 0.338"
 
Powder: IMR 8133 (Improved Military Rifle)
Starting Powder: 102.0 gr
Max Powder: 108.5 gr
 
Primer: FED 215m
 
Case: Weatherby
Trim Length: 2.903"
 
Cartridge Overall Length: 3.750"
 
Starting Velocity: 2,660
Starting Pressure: 42,900
Max Velocity: 2,858
Max Pressure: 52,700 CUP
 
Barrel: 26" with 1:10" twist.
 
Source: https://www.hodgdonreloading.com/
 

Printed from Shooter's Reference on 05/07/2024:
https://www.shootersreference.com/reloadingdata/338-378-weatherby-magnum/