These bullets were in production for over 60 years and they predate all other existing "tipped" bullets. Perhaps the first "tipped" centerfire bullet was the Hoxie bullet (1907), which used a round steel ball placed in a hollow point."A superb choice for long-range medium game. The high ballistic coefficient of the bronze insert produces a flat trajectory and maintains high velocity and energy at extreme ranges. Yet on impact, the tip is driven backward to create rapid expansion that is controlled to optimum limits by the pre-grooved jacket, even on thin-skinned game. The tip also protects the bullet nose from being deformed by recoil while in the magazine."