Your Western Field model M830 was made by the Mossberg and Sons firearms Company.It is the Mossberg model 340K which was made from 1958-1980.
the year my firearms m830
its going for $300 on ebay
We have them. sales@countrygunsmith.net
My resources indicate that your Western Field M830 was made by Mossberg.The Mossberg model 340K and your rifle are the same model.These were made from 1958-1980.
This model cross references over to a Mossberg Model 340K bolt action repeater, made from 1958-1960. Check this website for Mossberg information home.epix.net/~damguy
Around $100-$140.
You can purchase a magazine for the Western Field M830 .22 rifle at various online retailers such as MidwayUSA, Brownells, or GunBroker. Additionally, local gun shops or sporting goods stores may carry replacement magazines or can order them for you. It's also worth checking out specialized firearm forums or websites dedicated to vintage firearms, as they may have listings for used or aftermarket magazines.