WC820 is a fine powder that I use for .45 Colt loads. The 8# batch I received duplicates H110 burn rates almost exactly.
But like Leftoverdj said, be very conservative when you first start loading with it to determine the burn speed...
.45 Super... Fat and FAST... but for real firepower, .45 Blackhawk!
Yes, in fact I do have a 454... in more ways than one.
"No provision in our Constitution ought to be dearer to man than that which protects the rights of conscience against the enterprises of the civil authority" - Thomas Jefferson