I have a Tikka T3 lite & I find the trigger is excellent the way it came from the factory. But maybe I got lucky.
There are a number of factors that affect accuracy, such as barrel bedding, rifling twist, the quality of the scope, how you hold the gun when pulling the trigger , the ammo that you are using etc. If you reload you may want to try some different loads to get better accuracy.
Good luck. The search for the utmost accuracy is the search for the holy grail.