Load Data for .300 RUM (Remington Ultra Magnum)


 
Bullet: 180 gr TTSX B  (Barnes)
Diameter: 0.308"
 
Powder: IMR 8133 (Improved Military Rifle)
Starting Powder: 86.5 gr
Max Powder: 92.5 gr
 
Primer: REM 9½M
 
Case: REM
Trim Length: 2.840"
 
Cartridge Overall Length: 3.600"
 
Starting Velocity: 2,950
Starting Pressure: 54,600
Max Velocity: 3,135
Max Pressure: 62,600
 
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/300-rum-remington-ultra-magnum/