Load Data for .300 RUM (Remington Ultra Magnum)


 
Bullet: 140 gr XBT  (Barnes)
Diameter: 0.308"
 
Powder: Retumbo (Hodgdon)
Starting Powder: 97.0 gr
Max Powder: 103.5 gr
 
Primer: REM 9½M
 
Case: REM
Trim Length: 2.840"
 
Cartridge Overall Length: 3.555"
 
Starting Velocity: 3,282
Starting Pressure: 52,100
Max Velocity: 3,493
Max Pressure: 61,400
 
Compressed
Barrel: 24" with 1:10" twist.
 
Source: https://www.hodgdonreloading.com/
 

Printed from Shooter's Reference on 11/21/2024:
https://www.shootersreference.com/reloadingdata/300-rum-remington-ultra-magnum/