" An SJH, in ballistics shorthand. It was a brutally efficient piece of ordnance. Not exactly a dum-dum, named after Dum-Dum, India, where a British army officer had invented a bullet that mushroomed out on impact and acted as a miniature wrecking ball inside the body. Innovation wasn’t always good for you. The .45 SJH had blown right through the front of Cassie Decker’s skull and ended up lodged deep in her brain. It had been dug out of her during the autopsy and the slug preserved as evidence in her murder investigation. It had retained enough of its shape "
― David Baldacci , Memory Man (Amos Decker, #1)