300 Ultra Mag Load

[cousehunter]

I want to load some 180gr accubonds and would like to use some existing RL25 that I have. Does anyone have some load info they could share, using this powder?

Thanks in advance...gjszabo

 

[Eaglet]

gjszabo,
Here are the links to some reading you might be interested:
two , three , four.
I hope it helps!

 

[Michael Eichele]

I use 90.0 grains w/180 AB. 3300+ I do have a tight neck BR chamber which drives the pressure up, hence my reduced charge. If you have a factory chamber you may need more than 90 gr. to get 3300 or better. RL25 works REAL well in a 300 RUM.