One more thing few people realize about ballistic tips is that they have been changed several times over the years.The first ones were very soft but according to nosler they were toughened up several times especially in the larger calibers.I have used them since they came out in cartridges such as the 257wby and 7mmstw (which are very demanding on bullets due to the velocities they produce) and I have really noticed that the latest ones hold together better and penetrate much more than the early versions.