I am loading some 44 magnums with 180 grain Hornady JHPs. My Hornady book says to make the C.O.L 1.6". Instead of using AA#7 as the book recommends I am using 15 grains of AA#5 per Accurates loaading manual. The Accurate loading manual says to use a C.O.L of 1.56" with Hornady 180gr JHPs. I am...