What year made 22 Remington j302c59?

A J sounds like this is a model 4 rolling block??? Also there's no other letters.
It that's a 0 it's 1928 if not it's 1929 right on the boarder. IF it's a model 4.
Also if a model 4 it will be date code stamped indicating month/year on the left side of barrel in front of the receiver, you can look up diagram and codes on the Remington Society of America