Load Data for .300 RUM (Remington Ultra Magnum)


 
Bullet: 185 gr Mega E415  (Lapua)
Diameter: 
 
Powder: N560 (VihtaVuori)
Starting Powder: 79.9 gr
Max Powder: 90.0 gr
 
Primer:  Large Rifle Magnum
 
Case: REM
Trim Length: 2.839"
 
Cartridge Overall Length: 3.484"
 
Starting Velocity: 2,867
Starting Pressure:  
Max Velocity: 3,179
Max Pressure:  
 
CAUTION: Loads less than the listed starting loads may cause excessive chamber pressure and must not be used!
Barrel: 26" with 1 in 10" twist.
 
Source: https://www.vihtavuori.com/reloading-data/rifle-reloading/?cartridge=22
 

Printed from Shooter's Reference on 12/03/2024:
https://www.shootersreference.com/reloadingdata/300-rum-remington-ultra-magnum/