Lance if that had been a man, instead of gelatin, he would not have been in any pain.
He would have been dead.
I have seen it many times on ambulance calls and the result was always the same. Dead Right There.
You get 9 inches of penetration. How thick is a human? Your chest wall tissue is like a deer's, it is maybe 2 inches thick, on a fat person 4 inches thick.
Get through that and all you have is stuff that bleeds a lot, like lungs and arteries.
Hit a man with a load like that in the torso and he will be in full cardiac arrest when the paramedics get there.