Try gun shops, pawn shops,estate sales, garage sales, for sale ads, place a want ad, Shotgun News, gun shows, egunparts.
You can try e-gunparts.com
One place to check for a magazine for an older model .22 rifle is at a pawn shop that trades guns. Another would be neighborhood yard sales.
We have new 10 round magazines for that rifle. sales@countrygunsmith.net
1971-72 model
www.e-gunparts.com
The 282 is the Winchester model 521 made for sears
find a collector i sold my sears and roebuck for 750 im sure you can get quite a bit.
We have them. gunshop@nctv.com
http://www.histandard.info/PDF/Sears%20Shotguns.pdf
To find a clip for the Sears Roebuck Co. Model 42 DLM -1032731 .22 magazine, you can check local gun shops or sporting goods stores that specialize in firearms. Online retailers, such as GunBroker, MidwayUSA, or numrich.com, often have parts for older models. Additionally, you might consider visiting forums or groups dedicated to vintage firearms, where members can offer advice or sell parts.
the model number is #57158762 and serial number is 7621447
The sears model 6c-22 was made Winchester/ same as Winchester model#490