From what I have been able to " extract" from the " grananimal pack" is a study that had equations derived from using a machine to remove kidney stones. It basically " debunked" at that time the thought that hyperspeeds out of a handgun would replace mass and bore size?

I have yet to see any debunking of current studies based on centerfire rifles, still waiting.

"Shoot low sheriff, I think he's riding a shetland!" B. Wills