I'm getting ready to do some load development in my newly built 111 260 rem with a 24" Criterion match chamber. This is a hunting rifle and it will be shot in summer and winter so I need a temperature stable powder. The first bullet I'm going to try is the 140 VLD in Lapua brass with CCI 200 primers. I'm aware that H4350 is a very popular powder for the 260 but it is nonexistent right now. I have varget and will try that but I would like to try a couple others as well. Any help will be appreciated.