Anytime I hear about this I think back to the young man killed during a Jesse James gang robbery he was shot three times by three different shooters one in the head two in the heart by three separate shooters all with black powder revolvers most likely 36 caliber and all on horseback.
There was also a study done many years ago published in guns and ammo where for the most part anything that penetrated 3-4 inches of any caliber would be lethal from 22cb to 45acp
There was also a study done many years ago published in guns and ammo where for the most part anything that penetrated 3-4 inches of any caliber would be lethal from 22cb to 45acp