I'm not confused about this at all, none of them and all of them. With few exceptions I've always preferred the boileroom shot and have yet to recover a bullet. Without exception the innards are pureed goo...heart, lungs....ticks that get in the way. Core-lokts, Hornady 170 grain flat points, whatever...they aren't not kind to flesh, and one can't make critters any deader than dead. Bullets intended for .30-30 velocities are designed to expand at those velocities, case closed.