This was removed from the neck of a whitetail spike buck I shot late this fall approximately forty yards. The bullet hit the first vertabrae under the skull there was no exit wound no sign of the lead.
This was factory ammunition at an advertised mv of 2000fps. I've sense began to reload and have found that in order to get the bullets to remain intact. I have to slow them down to below 1700fps. At which point I may as well be shooting caste bullets. These tests were conducted into five gallon water jugs at fifty yards layed down.