03-17-2020, 02:44 PM
Basically most all ball powders are more temp sensitive than extruded stick powders. Most of the Hodgdon extruded stick powders are much less temp sensitive like H4895 as mentioned. The IMR Enduron powders are supposed to be temp stable but I have not used any. IMR 8208 is also a very temp stable powder and is what I use in my 6.5 Grendel 120 gr bullet loads. I have not worked much with lighter bullets. I did quite a bit of work trying to get the 123 Hornady SST to shoot but neither of my rifles liked that bullet no matter what powder or charge I tried.