I ran a ladder test with 2 different powders. H322 & CFE223. The cfe had a better grouping than the 322 but I have seen a diagram showing 1.7fps per degree. I had a 1.03moa across 3 charges with 2 being .32 while the 322 was 1.07 with 3 and the closest 2 being .97. The charges are in .3grn steps. Velocity is a wash between them. So my question is would you give up the potential .6moa for temp stability or just build dope cards for several different temps. My temp range will be 20-90 but would mostly be around 30-60. It was around 25 when I tested the loads.