Folks keep pinging me on data for short barrel revolvers and 357magnum. I am not done yet, but here is a snapshot of some of the data I have collected. It is limited but does have a sample from Ruger SP101 2.25", 3", Ruger GP100 3", and a couple of different S&W 2.5", 3" and 4" revolvers.
I know that some of them look weird (like the Speer 158gr 2.5" vs 3"), but that is what I have recorded. I will have to doublecheck those.