Bullseye powder
Sevenpoint--Bullseye works with every .45ACP bullet in Lyman's Cast Bullet Handbook; the same in Lyman's 48th ed. Reloading Handbook. In some instances it is listed as the most accurate of the powders tested for that particular load and bullet.
Do you not have a reloading manual? (Preferably more than one; cross-referencing is always good!) If not may I humbly but earnestly suggest that you get one or more.
IMHO, there is nothing to beat having the recipie in front of you in black and white, published by one of the major manufacturers, to check and re-check as you go about setting up your loading.
Forgive me, fellow THR'ers, but anybody can post anything on the internet, and that doesn't prove it is tested or safe.
Call me an old mother hen if you will, but I have never Ka-Boomed a gun, and intend to keep it that way. Doing so tends to ruin the entire afternoon.