When I shot 7mag I always shot Barnes TSX out of it and I dropped about 6 elk with it within 15 yards of impact. I still use the TTSX in my 325 wsm for elk but have been using the Ballistic tips out of my 270 for deer for awhile and I have dropped 4 deer with it, not one of them moved from where they were shot at. Closest was 25 yards and farthest was 420yards. I honestly don't think bullet choice is that big of a deal, even if the shot is good some animals are just gonna run. Looks like your shot was kinda high and my guess it just hit the top of the lungs. If your gun shoots the Ballistic tips well I would stay with them. For every bullet you are gonna here good and bad stories.