Together with the smoother flow properties arrives more uniform cost weights, when the person grains orient far more compactly, creating greater loading density. I've several pounds of RE15 but I've under no circumstances witnessed any posted loads for it from the .223Rem. I utilize it largely in my .308 and https://fernandooxbis.angelinsblog.com/19820470/the-definitive-guide-to-hodgdon-h380