Speer DeepCurl bullets were designed for deep penetration. This line formally known as the Gold Dot Hunting line uses the same bonding technology that has always been used. Each jacket is electro-chemically bonded to the core to create a tough bullet that will perform in the harshest conditions, giving reliable performance every time. The preformed petals give controlled expansion and the high retained weight gives deep penetration and excellent accuracy when the time comes for that once in a lifetime shot.