I've killed 3 bull elk and one mule deer with my 7mm RM shooting 168 Berger's HVLD's at 2929 fps (489, 366, 500 and 314 yards). All died fairly quickly, the 489 bull was the only elk that had an exit hole, he also ran the furthest (50 yards). I've killed two bull elk with my 6.5 GAP 4S shooting the 156 Berger at 2850 fps (150 and 250 yards), both DRT. Neither bullet exited. I'm convinced they not only work, they work well!