Having many Tikkas, and having owned a few 721s... I would consider a rebarrel on that 721 regardless (but not a Christensen pre-fit). I am not sure pre-fits will work on a 721, but that should be easy to find out. I have seen too many Christensen barrels that don't shoot. The odds are not...
I am starting my own 7 PRC build on a Tikka. Building a mid-weight intended to be suppressed. All else being equal, I prefer the Tikkas for many, many reasons. Great triggers, ergos and decent aftermarket stock options. I am screwing on a Bartlein barrel to get things started.
So, I browse several forums and really like what I am seeing here. I hunt everything... as much as possible. Also like to reload and shoot a fair bit. I am headed out to my blind for WT does this afternoon and cutting up my elk later tonight.... Gotta love life!
Fun personality! Forloh is an interesting brand with an interesting guy on board. I look forward to seeing what Forloh has coming up in their product lines.