Your western field model 830 was made by mossberg for montgomery wards.There model designator was the mossberg model 340K,The value of these guns are between 55-200 dollars.
The Western Field Model 830 .22 rifle was manufactured by the Savage Arms Company. It was sold under the Western Field brand, which was a private label for Montgomery Ward, a retail chain in the United States. The Model 830 features a simple design and is known for its reliability as a .22 caliber rifle.
5-100 usd
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.
It depends on what condition it is in and what kind of model, I found one for $830!
830
42% of 830= 42% * 830= 0.42 * 830= 348.6
50% of 830= 50% * 830= 0.50 * 830= 415
30% of 830= 30% * 830= 0.3 * 830= 249
830
60 percent of 830 dollars = $49860% of $830= 60% * $830= 60%/100% * $830= $498
20% of 830 = 830*20/100 = 166
830