Winchester.
Winchester model 70
I happen to believe that your sears model 460 could have been made by marlin.The marlin model 56 should be your sears model 460.
Made by Marlin....same as the Marlin Model 80
Made by Marlin....same as the Marlin Model 80
It's actually a Winchester model 70 made for Sears and Roebuck.
No sn data
It was made from 1963 to 1967
Savage. It is their model 340.
The sears model 6c-22 was made Winchester/ same as Winchester model#490
Sears & Roebuck It was made in 1979
Proofhouse.com has a store brand chart.
I believe your rifle is a Marlin Model 80 made for Sears.