The new Lyman book shows pressure both in PSI and CUP . One other thing when compairing the " long and short of it" sorry about that check your barrel length. In many cases you will find that your rifle has a barrel several inches shorter barrel then the test barrels. This is why in the case with Weatherby, alot of their catilog velosities are higher then loading manuals. It used to be that Weatherby used pressure guns for testing and these have 30" tubes.
You are right about the laz, or should it be hot and spicy peperoni cartridges. Their pressures are really pushing things, and when you look at velosity figures check their barrel length, most are in the 29" range if I remember.