I'm going to try to answer your question, but first I need to clarify something:
You do mean Pellet gun not Pellet gum. You did not state the manufactures name so I think you mean "Benjamin 312 Pellet rifle."
Now all you need to do is verify you meant "Benjamin 312 pellet rifle" and let me know the current condition of this rifle. Also state if it still holds air and is working condition.
Then I can give you and estimate of value
What condition is it in, That determines the value. BTW they all had Brass Barrels.
All the Benjamin .22 cal were made of Brass and painted Black. What condition and what model are you asking about.
It was made in the 1970's You did not state the condition of the rifle so no estimate of value can be given. Average value $25
very little is written about this manufacture. All I can tell you is it started in 2005
Benjamin made several different rifles. Please state the model number (It's most likely on the barrel) and the condition of the rifle to get an estimate of value. Is it still working? Is it in Excellent, Very good, Good, Fair or Poor condition?
what is the value of a s&w model 29 with a 10.63 barrel
Please state the model and the condition to get an estimate of value.
The Winchester model 425 was made for Winchester by "Meyer & Grammelspacher" of Germany. The value is determined by the condition of the rifle. without any information about the condition of the pellet rifle, no estimate of value can be determined.
about 35000.00
20-100 or so depending on model
What is the value of a noble 12 guage model 60 shotgun with a 32 inch barrel?
check barrel and frame for model