As the former owner of a BOSS equipped rifle,I could not disagree more.My own BOSS came loose regularly which changed the point of impact.The BOSS equipped rifles also come with shorter barrels to compensate for the length of the BOSS,the result being that they produce less velocity than a non-BOSS equipped rifle.Lastly,the BOSS equipped rifle was not my most accurate rifle despite much time and ammunition spent tuning it.I will never own another BOSS equipped rifle.
If accuracy is important,the only rifle mentioned that comes with an accuracy guarantee is the tikka.And as another posterstated previously,a synthetic stock will produce a more consistant point of impact.