OK guys, just when I was about to think the 300 SMK was good on game, 338 bruce on another thread says he's shot 7 elk with them and they won't open at 100 to 600 yds. At least his didn't except when he hit the spine. He listed about three other bullets that did well for him. So my questions are: Is this your experience? What is the top and bottom end of velocity that they have expanded and performed well on game for you? If they won't expand at 100 to 600 yds how are they going to farther out? Thanks!!