expanding before or on impact, i.e. of dumdum or mushroom type

Full Title

Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material (F42B6/00, F42B10/00, F42B14/00 take precedence; for practice or training F42B8/12, F42B8/28; self-propulsion or guidance aspects F42B15/00) > characterised by the warhead or the intended effect > expanding before or on impact, i.e. of dumdum or mushroom type