Load Data for .300 RUM (Remington Ultra Magnum)

 
Bullet: 165 gr Grand Slam SP  (Speer)
Diameter: 0.308"
 
Powder: IMR 7977 (Improved Military Rifle)
Starting Powder: 85.8 gr
Max Powder: 95.2 gr
 
Primer: FED 215
 
Case: FED
Trim Length:  
 
Cartridge Overall Length: 3.460"
 
Starting Velocity: 2,924
Starting Pressure:  
Max Velocity: 3,247
Max Pressure:  
 
 
Source: https://reloadingdata.speer.com/downloads/speer/reloading-pdfs/rifle/300_Remington_Ultra_Magnum_165_168.pdf
 
Printed from Shooter's Reference on 12/26/2024:
https://www.shootersreference.com/reloadingdata/300-rum-remington-ultra-magnum/