I believe the 190 is somewhat similar to the 1403 and 1903. It has a 64 action.
You are correct. The CIL/Anschutz 190 was a lighter barrelled version of the Savage/Anschutz Match 64 for use in Canadian "Sporting Rifle" competition. Initially the Anschutz 1403 was the rest of the world rifle similar to these two, but I am not certain what its barrel weight was.
I think that the 1403 was available with either two different barrel weights or perhaps one was a "junior" rifle with shorter stock, lighter weight etc etc
It seems that eventually Canada and the USA got the same model numbers as the rest of the world, i.e. the 1403.