If it doesn't have screw in changeable chokes...I think you should pass on it.
Not all model 1300's had the winchoke system in them / I don't think Winchester started installing them until the mid 80's ...but not positive.
Barrel length / and if its a fixed choke ...what the choke is - all affect value in a big way. If it has the winchoke changeable choke system in it ...and how many choke tubes come with the gun - will also affect the value.
If its a fixed choke gun ...value in my opinion is maybe $100.