Everyone tries to come out with a bullet that will expand everytime and retain 100% of its weight. Everyone tries to do what Gold Dots already do. Gold Dot is the finest bullet available. It is also cost effective because it is relatively easy to make and make consistently,
I have seen numerous bullets fired into real, living tissue and have yet to see a Gold Dot fail. Proper expansion, everytime. 100% weight retention, everytime. In fact they occasionally GAIN weight when they pass through bone. The soft lead core will carry bone fragments and increase weight.