Perfect combo, and great choice! If you reload, check out the 7 PRC as well. My next hunting rifle will be a 7PRC , likely the Ruger American ii ‘Predator’. They’re pretty impressive hunting tools for the price.
Took my first bull elk this year @ 440yds using 165gr Accubond in 30-06 loaded @ 2950fps. The 180’s are great as well, and I’d use them without hesitation. I can’t speak to the Barnes TTSX, but I’ve loved the Cavity Back Bullets MKZ coppers out of my 6.8spc and 270. Give ‘em a look!