I would agree with neck tension on the 90 TNT being an issue in an AR. I'm not sure if it is the bearing surface or what, but I have to crimp the snot out of them and even then they still move sometimes. It may have to do with the ogive coupled with the mag length restriction in the AR. I have shot some pretty big pigs with them and they work fine as far as terminal performance goes, can't remember if I have shot any coyotes with them or not.
I have gone to the 95 VMAX in my Grendel for all my night shooting, hogs and coyotes. Seems they stay seated much better than the TNT, and my Grendel really likes them. So far they have been putting down everything I shoot with them. At Grendel speeds they are not as explosive (mine is a 16" barrel for night hunting with a can), but they open up real good and don't bounce as bad as some of the heavier bullets. I am shooting them about 2625 fps.