Rich J, My powder is a long ways from new production, but it's new enough to be in current style of containers..and I just don't see H4895 and IMR 4895 being on the same line. In a .308, with a 150 grain flatbase, I get just about same result grain for grain that puts H4895 very close to IMR 3031...and IMR 4895 requires at least 2 more grains to reach same velocity. But, as I said, I'm not sure how old my powders are or what date your chart is.
