Load Data for .338 RUM (Remington Ultra Magnum)


 
Bullet: 275 gr AF  (Swift)
Diameter: 0.338"
 
Powder: IMR 7828 (Improved Military Rifle)
Starting Powder: 79.0 gr
Max Powder: 86.0 gr
 
Primer: REM 9½M
 
Case: REM
Trim Length: 2.750"
 
Cartridge Overall Length: 3.490"
 
Starting Velocity: 2,545
Starting Pressure: 54,700
Max Velocity: 2,731
Max Pressure: 64,100
 
Barrel: 24" with 1:10" twist.
 
Source: https://www.hodgdonreloading.com/
 

Printed from Shooter's Reference on 11/23/2024:
https://www.shootersreference.com/reloadingdata/338-rum-remington-ultra-magnum/