Just received the Lyman Blackpowder Handbook and Loading Manual, 2d edition, and it has much of what I was looking for. However, it is not exhaustive and mainly focuses on Lyman products. I also have some 405 grain 54 cal Aerotip Powerbelt bullets, and I can't seem to find anything on them either. Even the Powerbelt site doesn't have data on this bullet in that size.

Oh well. Time to spend time at the shooting range.