Dum-Dum Bullet.

A British military bullet developed in India Dum- Dum Arsenal and used on India's North West Frontier and in the Sudan in 1897 and 1898. It was a jacketed .303 cal. British bullet with the jacket nose left open to expose the lead core in the hope of increasing effectiveness. Improvement was not pursued, for The Hague Convention of 1899 (not the Geneva Convention of 1925, which dealt largely with gas warfare) outlawed such bullets for warfare. Often Dum-Dum is misused as a term for any soft nosed or hollow pointed hunting bullet. A bullet with a concavity in its nose to increase expansion on penetration of a solid target.

The Russians used it in the Winter War but I was wondering if anyone knows if it was used elsewhere and by whom?

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