Just picked up a pound of US869 and a box of the 240 Sierra Match Kings... I've seen a little bit of data on here for this combo, but most of it seems like it was shot in custom rifles. I'll be running them out of a stock Sendero in .300 RUM... I'm thinking starting somwhere in the 93 grain range and working up? I'm thinking 2850 should be an acceptable velocity, as long as the accuracy/consistency are there. Anyone got any suggestions on where the velocity should be?