I'm getting set up to load a Roberts. I'll be starting with 100 SGKs. If that bullet shoots well, I will probably call it good and get to shooting. I have a jug of H414 that I want to use, but the data in my Hodgdon manual only shows a difference of one grain between maximum and starting loads. Are there any characteristics of H414 particular to the Roberts that a loader should be aware of, such as temperature sensitivity?
I also noticed in my Speer manual that they suggest a magnum primer for this powder, while other companies evidently did all of their research with large rifle primers. Any thoughts on that?
Cheers,
Jeff
