Load Data for .338 RUM (Remington Ultra Magnum)


 
Bullet: 200 gr SP  (Speer)
Diameter: 0.338"
 
Powder: IMR 4831 (Improved Military Rifle)
Starting Powder: 84.0 gr
Max Powder: 90.5 gr
 
Primer: REM 9½M
 
Case: REM
Trim Length: 2.750"
 
Cartridge Overall Length: 3.590"
 
Starting Velocity: 2,971
Starting Pressure: 52,200
Max Velocity: 3,186
Max Pressure: 62,200
 
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/