I just did some work for a really good friend and I just found out he had custom built 300 prc done for me. I will not have it until next week. So my question is starting points for reloads, powder, bullets, etc. NX-8 is going on it, and it will be suppressed. I am numb right now that friend did this for me. The action ( i am not sure yet, I snooped like a little before christmas) the rifling etc. not sure but I know will be first class. But I hope some you 300 prc guys can help find a starting point for loading. I promise I will share the rifle when I take possession.