The new FT Steyr uses the same long chasis, barel and cylinder as the Benchrest gun which has been arround for a couple of years. The boost to 12 ft/lb is quite easy as it is basicaly the same gun. It can be done by changing a couple of internal bits for the ft parts. There is no need to change the reg to achieve this.
Here is a link to the new FT gun using the Benchrest chasis:
Make every shot count
Steyr Hunting 5 Scott Lupold 3-9x33EFR(for LSR )
FWB P70/Bushnell 6500 4-30x50T
SteyrLG110/Bushnell 6500 5-30x50
Steyr LG 100 FT Bush elliot 8-32x40