I use the 160 T-TSX in a 338 Federal, and it the best shooting non lead bullet in that gun.

I had the best results in the 338 Federal using 44.0 grs of RL 7 (also what Barnes states on the web). It ran past the chrony at 2890 only 30 ft slower than Barnes published results.

Since your case is off a 06 you should see better results as Barnes shows the 338-06 at 3241�a lot faster than the 338 Federal.

Ted