Hollow point ammunition was used to kill suspected suicide bomber.

[Cosmoline]

The word "dum dum" comes from the Dum-dum arsenal near Calcutta that first experimented with soft point bullets.

Cutting X's into the tip of FMJ bullets is a very bad idea. It's guaranteed to ruin accuracy and (depending on the hardness of the lead) can even cause the bullet to come apart inside the barrel.

Yup. Here's one of the actual original Dum Dum style .303's, though it wasn't made in Calcutta. It has a very deep hollow point that looks like it would be mighty nasty if it hit you at 2,300 fps.