Somewhere on here I read that w231 and hp38 were the same powder marketed under different names. I'm still somewhat new to loading and have some w231. I was going to try some hp38 but if it's the same what would be the point? I looked to the Lee maual and for the calibers I load there were some substantial differences between the charge weights with same bullets especially .357. Am I missing something, are they the same? I'm looking for an all around powder loading .38spl, .357 and .45acp. Wanna kill these ads? We can help!