I just bought the Load Book for 30-06 and noticed that H414 was listed as a powder giving some of the highest velocities for several makes and weights of bullets while data from other manufacturers don't list it at all. The Lyman manual lists it hardly at all while the Lee manual lists it as a top velocity producer for a number of bullet weights. I would like to experiment with it(a pressure series first) but wondered if anyone else had any experience with H414 in 30-06.