Load Data for .338 RUM (Remington Ultra Magnum)


 
Bullet: 300 gr HPBT  (Sierra)
Diameter: 0.338"
 
Powder: IMR 8133 (Improved Military Rifle)
Starting Powder: 88.0 gr
Max Powder: 96.0 gr
 
Primer: REM 9½M
 
Case: REM
Trim Length: 2.750"
 
Cartridge Overall Length: 3.580"
 
Starting Velocity: 2,453
Starting Pressure: 47,200
Max Velocity: 2,722
Max Pressure: 62,300
 
Compressed
Barrel: 24" with 1:10" twist.
 
Source: https://www.hodgdonreloading.com/
 

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