Shooter's World Heavy Pistol is supposed to be as close to Accurate #9 as different lots of it would be to each other. I've used both and actually had better groups with the Shooter's World. Maybe since they make it themselves (Lovex) it's got tighter quality control . . . don't know. I've used both for any magnum or large capacity pistol cartridge from 357 mag up to 454 Casull with great accuracy, velocity and clean burning.