0-1000 usd
50-125
50-250 usd
First you have to tell us what condition the rifle is in. Is it Excellent, Good, Fair, or Poor. Without this information it is impossible to give you an estimate of the value.
Impossible to answer without a detalied description of all features, caliber, barrel length, sights, stock, accessories, condition, markings,etc..
100-tens of thousands depending on specifics.
100 to tens of thousands depenidng on specifics.
300 to 400
Impossible to answer without more information.
It all depends on the condition of the air rifle. Without more information it is not possible to answer you.
15-125 usd
10-100 USD or so
No way of saying without more information.