When it comes to rifle reloading I just have never been impressed with the performance I've gotten from ball powders. I've only tried two, really, BLC-2 and WW 748, but they just didn't do what I wanted, so I stuck with IMR powders, mainly 4320 and 4064.
In pistol powders, though, it would be a cold day in central hell before I have up WW 231 and 296!
280Plus,
Actually, the .223 round was originally developed with stick powders, and worked great. But near time when the rifle was about to be adopted, Winchester started loading the ammo with ball powder. It was a new manufacturing process, but the powder gave higher velocity. That's when the problems with the rifles really started.
Turned out that early ball powder used calcium carbonate, in quantities up to 1.25% of the total weight of the finished powder, as a final buffer to neutralize any acid remaining from the manufacturing process.
That CaCO3 would collect in the M16's gas system and form a residue not unlike a stone.
As the manufacturing process improved, Winchester found that it could reduce the amount of CaCO3 to a little under 0.25% of the total weight of the finished power. That amount didn't promote scale in the gas system.