Compare Federals published data on the 7mm STW and the 7mm Rem mag with 160 grain accubonds.
The STW starts out at 3100 fps with 3415 pounds of energy and at 400 yards is still going 2410 fps and has 2065 pounds of energy.
That is the reason that I would not own a 7mmstw if I didn't reload.The factory loads are pathetically mild.With handloads the 7mmstw will drive the 160gr bullets at between 3250fps and 3300fps.