What bc told you is basically sound advice. I, myself, work in a little small er parameters as far as powder charge weights are concerned, but that is just the way I like to do it. One thing I would like to say is that I have totally frusrated myself on more than one occasion in the attempt to try to get a particular bullet to shoot in a given gun. On several different attempts with a multitude of powders, it has become impossible for me to get the bullet I wished to shoot to perform to my expectations. Once I switch bullets, I can often find exactly what I'm looking for. As we all know, guns are individuals to themselves, and they will definitely tell you what they want.
I think we all strive for maximum velocity with the accuracy that is acceptable in the reasonable parameters we seek.....
You definitely seem to have a good grasp on the concept.....