This is a good quality product, the distance between the farthest is 82 mm screws, the distance between the two remote live there there made three 22 mm.
This should be able to fix a Tikka T3, between the two inner screws that are 82 mm or on the end or the end of the screws that are 22 mm.
The fixing of a Tikka T3 is between the first and second screws 22 mm, between the second and third screws 82 mm and between the third and the fourth and final screw is 22 mm.
As against the rail 4 mm screws are those of the Tikka T3 are 3.5 mm, it is necessary to change them.