New reloader here. Based on reading posts here I’ve decided to load my first batch using some unique I have on hand but I also have multiple jugs of wideners commercial pistol powder. Where can I find load data for this powder? My books don’t have it and the label only lists three loads. What is this best used for? I’ll be loading a number of calibers as I get into it so I can use it where it’s recommended. The loads will be for practice range loads. Starting with pistol calibers.