The ongoing powder shortage emergency might prevent access to H4350 and RL16, two of my favorite powders for loading the 6.5X47L & .260 with 130-140 bullets. The 6.5 CM likes the same powders also. In the likely event of failure to find H4350 or RL16 try Alliant 4000MR. 4000MR is sort of like RL19 in burn rate, is a formed ball powder of medium density and be a good fit.