My two daughters killed a buck each last fall with my 7rem mag / 190 berger target hybrid leaving muzzle at 2900fps through 8.5"twist barrel. Both bucks were basically straight on. Both bucks had extreme heart/lung damage, neither was messy behind diaphragm. One was 425 yards, one was 460 yards. Neither buck folded up on the spot but they were on a steep enough hill side that it took no effort to go down the hill side. Youngest daughter shot a big doe at 200yds with 6crdm/109hyb leaving muzzle at 3150fps through 7.5" twist barrel broadside behind shoulder with no exit. I have a theory that these bullets in my rigs are potentially coming apart faster due to extra RPM's in faster twist rifles. They def are not going far after impact.