I swapped out a couple of factory Tikka T3 tupperware stocks for B&C medalists a couple of years ago.

Accuracy did not improve on either rifle after installing the Medalist stocks. IMO the grip section of the medalist stock is thick and the B&C stock made the T3s feel clubby. I sold both Medalists and bought McMillan Sako Hunter stocks which fit and feel much better to me.

Again I did not see a dramatic improvement in accuracy over the factory stock.