I went to work up some 190gr. loads for my .300 Win Mag and found way less than pound of H4381 left in the jug. Hardly enough for the 20 rounds I had planned on. I come to find out that H4381 has be "replaced" with H4381SC. Seem that "SC" stands for "short cut". As opposed to the original "long cut". I was told it's "the exact same stuff made smaller to meter better". To me, it seems as this would speed up the burn rate. But I was told it didn't.
What says the PM collective... Is the H4381SC the same as the old, non "SC" powder? And if it's different, how do I alter my current loads?
