Photo Credit: Gopal1035
A man enters a hospital at 4 am claiming to have suffered a bullet wound to the abdomen. After an extraction, a police investigation, and a ton of research, we found a full metal jacket backwards inside of the patient.
The odd part is this, the back was expanded as if it were a soft or hollow-point. The shooter, apparently a jealous friend, allegedly loaded an average, military grade, 7.62 round. Can anyone explain how this basic ball round turned into a low penetrating, expanding cartridge?
General Information on The Full Metal Jacket (FMJ) bullet
An essential requirement for the making of a FMJ bullet is that the base is closed after the core is tamped. A small amount of jacket material protrudes beyond the tamped lead core and is folded over the core. This is accomplished in two operations. Folding begins by coning the rear edge of the jacket; a base-finishing die flattens the base.
(Firearm Examiner Training: U.S. Department of Justice)
Related Information on The All About Forensic Science Website