I have not loaded the TTSX bullet in a 7mm-08, but I have limited experience with the TSX bullet in a 7mm-08. I have found that RL-19 works great in the Savage rifle that I load, so I have worked up a load using RL.-19 and the 140 grains TSX. I stopped at 50.0 grains, in RP cases, WLR primers for a velocity of about 2850 ft/sec out of a 22 inch barrel.