Tikka fit vs Browning

[puphood1]

I am looking at buying a Tikka T3X however when shouldering the stores guns they seem to be 1/2-1 inch short of sitting on my shoulder properly. I also tried a Browning X bolt which shouldered up much better and compared the two rifles side by side and it appeared that the X-bolt's butt end of the stock was longer by about 1/2 inch.
As I was hoping to purchase a T3X I am wondering if there is a fit fix for the stocks lack of length? Shim? Replacement stock ?....Thanks...