You dont deserve the gun or magazine if you call a magazine a clip.
Depending on condition, $150-$200.
Your westernfield model M822 was made for montgomery wards(westernfield) by mossberg gun manufacturing company.The mossberg model designation for this gun was the mossberg model 640K.these were made by mossberg between the years 1959-1984.
mossberg model 640k takes m339 5 round clips about $30 each
I GAVE $120.00 FOR MINE IT IS IN GOOD SHAPE.
We are going to have to assume you mean a Western Field M822A rifle in .22 Magnum. These guns were made by Mossberg for Montomery Wards and are basically the same as the Mossberg 640. That model is obsolete, so perhaps you might try doing an internet search for 'Mossberg 640 Owner Manual' and see if somebody has a repro available. sales@countrygunsmith.net
The rifle was built in the early to mid 1970's by Mossberg Firearms. The Model 766 was the Montgomery Wards store brand version of the Mossberg Model 810B. I own one of these in 7mm Remington Magnum.
I believe your rifle was made for Western Auto by OF Mossberg as their Model 640K. Magazines can be ordered at most gun dealers. They are available from Havlin Sales for $27, or Numrich for $32.50, plus shipping.
There are limited references on the 640K. Mine show the 640K made 1959-1960, the 640K-A from 1960-68, and the 640K-D from 1969-1985. My best guess would be after 1968. Vic Havlin at havlinsales.com runs the Mossberg Collector's Association, and may be able to narrow down the dates.
The approximate resale value of a .22 Mossberg 640KA is $125 to $175 depending on its condition. Some have sold for as much as $250 in like-new condition or new-in-box.
Mossberg Model 45.
The model was designed in 1971 by Mossberg for Montgomery Wards. This model was manufactured between the years of 1972 and 1973. It may have been available for purchase in the following years as it was contracted by Montgomery Wards and they would have purchase many of them from Mossberg to fulfill the contract. Later, the model was sold from 1974-1979 as the Mossberg 472. jsm
The westernfield model 850 was made by mossberg for Montgomery wards.The mossberg model number was mossberg model 353.I would start with mossberg and go from there.