The .270 WCF and 4831 are a way of life in my family of hunters, and Jack O would roll over in his grave at such hypocracy!!
I still have a supply of "old army surplus" 4831, the stuff that Jack built his house on, and it will outperform any of todays modern powders by near a 100 FPS, but alas mine may be the last available batch, so I will be looking for a replacement if I stay on this side of the dirt for any length of time!