He uses W231.
Probably as dirty as bullseye but flows through his Dillon nice and its so versatile as to be used in any pistol caliber he chooses in which case he tends to be pretty conservative and sticks with .38 Spcl 148 gr HBWC, 9mm and .45 ACP of course.
I think he is pretty busy these days though prepping to smite the communist for election stealing (I hope).
I have about 20 # of that stuff. Do you have contact info? I can see this deal shaping up.