I've shot several whitetails with them in 243, 6.5 CM, 270, 308, and 30-06. Performance wise they seem about the same as BTs and SSTs, rapid expansion, limited penetration, good bullets for a lung shooter like me. The bullets that I've found were imbedded in the off-side rib cage or under the skin on the off-side. Not much blood trail to speak of, if that is important to you.
