It all depends on the person that wants to buy it, the model (there are over half a dozen Beretta Stampede models), the the condition of the barrel and the weapon parts, the accessories that have been added to it and need of funds by the person selling it.
100-300 or so
0 To 400.00
200 or so
200 or so
around $1,500.
50-500 usd
25-100
About $200, depending on exact model.
100-300 USD or so
0-400 USD depending on model, age, condition
$300-400, depending on condition and exact model.
Made 70-82. 50-200 USD or so