RE: Brass for 300 RUM
only load I have forbarnes in the RUM right now is 103g Reloader 25 pushing 150gr Barnes TSX
also have 200gr accubond with reloader 25 94.5g
please do not start with these loads.......drop down a few grains and build up from there. Each gun is different and yours may not handle these loads as well as mine....just a reminder