any one have an idea on what charge to start with? going to start using this combo here soon with some 140 vld's and cant seem to find a good starting charge.
Like others said, H1000 wouldn't be my fist choice in that case. You'd likely have powder bridging issues. I'd start with one of the powders recommended by either Hodgdon or Nosler.
FWIW, I have a 6.5x338 RUM improved that works great with US 869.