It is not recommended to shoot slugs with a power pack chock on a JC Higgins model.
There is a safety recall on these models- they are unsafe to shoot. Sears will provide a $50 gift card in exchange for the bolt of the shotgun. No bolt- cannot be fired.
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.
Hi Standard. Safety recall in effect- gun is unsafe to shoot. Search for Sears Shotgun recall.
yes
Not recommended
Yes
Needs to be examined by a gunsmith.
Not recommended
If it is not choked to tight, yes.
http://www.wikihow.com/Shoot-a-Shotgun
Yes your Winchester model 1897 pump action shotgun can shoot buck shot through it.