Load Data for .338 RUM (Remington Ultra Magnum)


 
Bullet: 285 gr TSX  (Barnes)
Diameter: 0.338"
 
Powder: H4831SC (Hodgdon)
Starting Powder: 71.2 gr
Max Powder: 79.1 gr
 
Primer: REM 9½M
 
Case: REM
Trim Length: 2.750"
 
Cartridge Overall Length: 3.600"
 
Starting Velocity: 2,385
Starting Pressure:  
Max Velocity: 2,597
Max Pressure:  
 
Barrel: 24" with 1:10" twist.
 
Source: https://www.barnesbullets.com/wp-content/uploads/2021/05/338RemUltraMag.pdf
 

Printed from Shooter's Reference on 12/21/2024:
https://www.shootersreference.com/reloadingdata/338-rum-remington-ultra-magnum/