I posed this very question to Customer service.
Here is the reply:
customer service [hr1871@hr1871.com]
Yes you can. Extensive use can open your choke up a little but it is not dangerous
-----Original Message-----
Sent: Tuesday, February 01, 2005 4:58 PM
To: hr1871@hr1871.com
Subject: Pardner Shotgun question
I recently purchased a 12 Ga. Pardner with a 32" full choke barrel.
The S.N. starts with NM. Can I safely shoot steel shot thru this gun?
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FWIW..
Regards,
Wrongpaw