I have hunted elk with a .270 for about 33 years now. Have had some great successes and some miserable failures - some bullet related and some were my fault. Here are some bullets that have worked for me that I can endorse from first hand experience: 150 Speer Grand Slam, 150 Sierra SBT, 150 Hornady Interlock, 140 TBBC, 140 Nosler Accubond, and the 130 Swift Scirocco. I have use the partitions and like them for shoulder shots - but they don't seem to kill as well on broadside rib shots, which is mostly what I take. I would suspect the same is true, to a degree, with the Barnes TSX and the Failsafe.