50-100 or so
50-450 usd
100-350 USD
savage arms corp (Stevens Chicopee falls Ma. )
Roughly $100
numrich arms gun parts corp
10-80 USD or so
It it is not marked, you will have to have a chamber cast taken.
Suggested value is from $50 to $150.
in excellent condition, i have seen them go for $270
Try Numrich Arms, also known as Gun Parts Corp. They have a website.
If it is not marked on the barrel, take it to a gun smith for a chamber cast.
You will need to take it to a gunsmith to know for sure.