Dudedog
Contributing Member
Glad to hear the 7.5 of 4756 with 200gr bullet worked out well for you.
You can safely use probably 40% or more of the available handgun powders available today in the 45 Auto. Some will produce better results than others but a lot will work.
W231/HP-38 is my favorite but you can also use, AutoComp, WST, Clays, Titegroup, Universal, 700X, PB, SR 7625, Red Dot, Green Dot, Promo, Unique, Bullseye, AA#2, AA#5 and Zip. You can even use HS-6, True Blue and Power Pistol and a few others in a pinch even though I think they are too slow for the 45 Auto. Of the 15 to 20 powders I listed above I'm sure you will be able to find a few.
I love Herco, not sure why it's not more popular. It's also findable if that's a word.All the above are good. I found a few pounds of Herco on sale (and they had nothing else at the time) so I bought it. I like it. Just a little slower than Unique and works great in the 9mm too.