If you go to the 160 ttsx you will need to keep them moving pretty fast. A bunch of us have been experimenting with them in the .338 Fed and, like all Barnes, they need to be moving. We've been loading around 2900 fps or so in the Fed.
If you want something that will perform below 2500 fps look at the 200 FTX from Federal. It is designed for the .338 Marlin Express and expands violently even at .338 fed velocities. It was a little too soft for my liking even at full power .338 Fed velocities, but would be perfect for what you want to do.
