Dumdum bullet

The Dumdum bullet (Japanese: "ダムダム弾") was an item planned to be used in the original Resident Evil. While the expanding bullet failed to make it into the game, the avatar was reused for the Magnum ammunition. It was to be used with the Colt Python.

"Dumdum" is an informal name for an expanding bullet, a bullet designed to expand on impact to increase its damage.