Another excellent choice is the 130g Berger tactical AR hybrid. It is the easiest bullet I've ever worked with and has very well documented performance on game. I have personally used it to take whitetail and hogs in everything from 6.5 Grendel to 264 win mag at every range from inside forty yards to a little past 700 yards. Always has about a 1-1/2" exit hole and utter internal carnage. With a nine twist rig there isn't a better choice available currently. I run it in a 24" 6.5/06 at 3080f/s which you should be able to easily and safely replicate in 6.5/284 with several different powders.