RE: Looking for a new powder & load for my 223?
WK,
It's not on your list, but if you have your mind made up abaout a ball powder, give Win 748 a try. Hodgdon recently brought out a benchrest powder for the .223 Rem.It is an extruded powder, but the kernels are so small it meters as nice as a ball powder. Plus it is one of the Extreme line of powders, so it won't be sensitive to temperature changes. I've had great results in a .222 Rem and two . 223s. One a bolt action and the other a AR-15. Good luck and God Bless.
Bob..