Sounds like an excellent combination! Have you shot a bull before or seen a bull being harvested? They typically don’t just fall over unless you shock their central nervous system. When I asked about the terminal situation, it appears more want to know this as well. All 4 shots the animal was perfectly broadside? The animal didn’t move after the first shot? How much time lapsed between first n last shot? If you stuck 4 bullets in lung tissue and didn’t touch anything else that animal is going to eventually expire. I’ve seen this out of a 7mag and eldx, 6.5 prc with 155 Berger’s. One was 4 shots n the other was 3 the time lapse was not more then 1 minute in either situation from first to last shot. Took a moment in both cases before the animal went down. A high shoulder shot by the 3rd in both cases I witnessed should’ve been considered…Then why does Barnes make them ? I went to the gun store, brought a Tikka, and brought 2 boxes of 168 TTSX off the shelf. and wa-la !!! accurate beyond accurate off the shelf combination !! never even tried another brand of ammo in this .308