Yeah, the 160TTSX really extends the range of the 338 Federal. I'm not sure about 2230 temp sensitivity but you could always substitute TAC (maybe add a grain) to get same velocity.
My Federal really likes the 200 Hot Cor and the 200 Ballistic Silvertip. I tested the 160TTSX for speed but not for accuracy. My gun range had banned anything over 7mm the last 2 years due to a lawsuit so I've been using mostly small bores. They lifted the ban 30 days ago so I've started playing with mid bores again.
I was hoping to bloody my 338 Fed this year on a hog or deer but I'm still waiting on a McMillan stock I ordered in March. I'll probably use my 350 Rem Mag . I can get right about 3000 fps with a 200 TTSX using TAC. I'd like to take that combo on a Nilgai hunt sometime soon. This year I'll probably just use 200 Core-lokts for deer/hog.
