What discipline are you pursuing? The mechanical accuracy of the barrelled action will probably not change when you put it into chassis. Your ability to easily shoot much more accurately will improve a lot though, especially PRS style shooting in the clock. The features of competitive chassis’s are built around the goals. They are a tool designed for a job, and they work great. Your factory barrel has significant limitations, although many shooters are too cheap to buy ammo that will do better anyway.
It’s about your goals and personal budget. The cheaper chassis’s are built to meet a price point, with critically useful features left out, in order to sell the flagship models to serious competitors. I used a T1X for 3 seasons of Rimfire PRS in an MDT ACC Premier. Most of that was with an aftermarket IBI barrel. The last season was using Eley Match ammo. Next time I would build a CZ, or commission a full on turn key custom build INCLUDING FULL TESTING BEFORE I TOUCHED IT.
Generally shooters try to reinvent the wheel because our experience is assumed to be bullshit.