Southport Connecticut
CHINA. It says so on the box.
Unless I have missed something, All Ruger firearms are made in the USA. Other makers brand forign made guns. But none of Ruger firearms are forign made.
KMart contracted with various makers. Ruger is one.
You are aware that Ruger has made .22 caliber rifles, pistols and revolvers? You have to give information to get information.
In the USA
You will have to find the ATF data for that year. Ruger will not tell you.
Of all the Ruger pellet air rifles, only one model comes in .22 caliber. The Ruger" Air Magnum" comes in both .177 and .22. It is made in China and is sold in this country through Pyramyd Air (see the link below.)
Go to the Ruger website, under customer service, historical data, rifles, select your model, find serial number, and it will show year of manufacture.
The Model 77
Ruger is one.
The company Sturm, Ruger & Co was first set up in 1949, when it first began selling its rifles. Since then, it has enjoyed wide success for its popular rifles.
No public data- but you can ask Ruger customer service through their website.