My buddies 280rem abolt is the same 160 class really shine. H4831SC is its powder. WLR primers, rem brass. I can't remember off hand his charge with 160gr AB's but 54.5gr H4831sc seems to pop out. Like anything use your manuals, cross reference and work up slowly.
I'd give the 154 Hornady IB's a look. Had good results using them in a 280, 7 rem mag