In no uncertain terms Vit 133 is the go-to powder for the 6ppc. Yet, I feel it is necessary to have an alternative to 133 due to conditions. Honestly 133 can be tough to shoot out west or where humidity is lacking. I'm looking at Reloader10x as an alternative. For those who have tried 10x out west or where the humidity is low, what did you find as a load that is reasonable to start with? Thanks,