I'm not a FT shooter, so please feel free to ignore my comment, but...
The HW100 is very reliable and accurate, so there is no issue there, for FT you do need a deeper forend and a but hook, but these can be added to a HW100.
If I was you, I would stick with the gun, get some nice glass. Spend the next year getting used to the sport and playing with other shooters kit, then when you have a better understanding of where you want to go in FT, you can change the rifle.
Don't jump into buying a Steyr or Walther until you are 100% sure which one you want and in the mean time, I have no doubt that you will take a few scalps with the HW100
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