Hodgdon HP-38/winchester 231, viti N-320, Ramshot zip, AA No.2 or No.5 and bullseye will work in all those. I believe you will find over time that different powders work better in different loads and cals. Win. 231 and bullseye make a fine standard load in .45, however most folks like Hodgdon Clays or VV n-310. Titegroup works well in 9mm and .40S&W, not so well in .45ACP. VV N-320 is the gold standard in .40S&W, however the price may turn you away. the long and the short, their is no standard powder, read the fourm here and test loads. You will find what works for you.