I am turning my Weatherby Vanguard into my first custom rifle. Kirby is accurizing and re-barreling with a 27 Lijla and Joel is building a laminate stock. Even though I am a couple months away, I am starting to think about loads. In the past, I have used IMR4350 for 300WM but I would like to get into one of Hodgon's Extreme powders for the new rifle. Does anyone have experience using H1000, H4831, or H4350 with 180 grain Accubonds in 300 WM? Other suggestions? Thanks guys.