Thread: Why plateaus in velocity graph

Yes, Cowboy that's what I mean. The theory that at certain ranges of powder charge velocity changes very little. Like this graph from the 6.5 Guys. They say we should focus on loads where the line is flattest since there, the SD is lowest. I don't know enough to dispute it but I can't get the idea to reconcile with anything I know about physics. Thought I'd ask if anyone else knew what was going on.