It would help if you stated the model and the condition of the pellet gun. Without some information it is not possible to answer you.
About 50 USD
What condition is it in. That determines the value
Around $50
What Condition is it in? That determines the value.
What model is it. How old is it, what condition is it in, is it still working?
It would help if you stated the condition of the rifle.
What condition is it in. That determines the value.
If you want an estimate of value then you will have to state the model and the condition of the pistol.
It is not possible to give you an answer on such little information. You will need to identify the model and the condition of the rifle. However most Chinese rifles are not worth very much.
None. A pellet of uranium contains uranium, not coal.
Depending on caliber, they can ragne from 4-28 grains.
it depends