Thanks for the reply Bill.
I still don't like those figures (not your fault). I have all of those loads available, and will have to toss some across a chronograph with Crankylove's SP101, next time I'm out. Every report I've seen is pretty much on the money for the factory claims. So, I guess it's time I verify, for myself.
Now I just have to talk my father into letting me borrow his chronograph....