If it's a 950 T single shot target rifle,the action screw spacing should be 4.525".There were 200 in R.H. bolt and 25 in L.H. bolt ordered by CIL in 1970 for the Dominion of Canada Rifle Association.Originally issued in 7.62x51 with 1in 12 twist.It came with 2 barrels,one Savage,one Anshutz with a round barrel nut for quick switch and adapted for Parker Hale sights.
About the same time CIL also ordered 275 model 950C's ,basically a model 110C series J "flatback",made between 1966-86[second version,first was 1958-65] both models are a bit rare.