The JC Higgins Model 20 is a well-made firearm. Provided you have it checked by a competent gunsmith, it can handle any standard 12ga 2 3/4" shotshell. If the gun is not choked 'FULL' you should be able to use slugs.
The JC Higgins 583.16 is a bolt-action 12ga shotgun made for Sears by High Standard in 1948/1949.
The JC Higgins Model 20 was a slide-action shotgun made for Sears by High Standard. Value, depending on condition, can range from $100-$225.
NO
This is a model 11 bolt-action shotgun.
499 dollars
The JC Higgins Model 20 was a slide-action shotgun, not a pistol. Is that the gun you have? sales@countrygunsmith.net
This shotgun was first made in 1956
$75-$125
what is a J C Higgins Model 583.9 20 gauge worth
High Standard shotguns made before 1969 did not have serial numbers except for some exported models and the Model 10-A bullpup. Your shotgun has no serial number.
Your 12 g pump shotgun was made for Sears by the High Standard Company- it was their Flite King model shotgun.
The JC Higgins 583.7 bolt action shotgun was made in late 1946 of early 1947.