It is hard to set the range of an air pistol because the range varies with the different power sources. A marksman 1010 pistol is possible the weakest pistol on the makes. It may actually go 200 feet with a tail wind. Bit the Benjamin Marauder (PreCharged Pneumatic) can cover over a 1/4 mile easily. BB do not travel as far as pellets and pellets come in 4 basic designs, each has a different ballistic range. Depending on the design and weight of the pellet.
So it best to say the effective range is at least 100 Yard's.
But that is not set in stone.
Gamo Hunter Extreme 1650 FPS - Air rifle .177 Cal Air Force TalonP 900 FPS air pistol .25 Cal Hatsan AT P1 Air Pistol .177 870 FPS The Air Force TalonP is faster in .25 Cal than the Hatsan .177 Cal
This is a .22 caliber air pistol not a .177 caliber pistol. See the link below for the owners manual.
which Model are you asking about
That would most likely be the Hatsan AT P2 PCP Air Pistol at 870 FPS
Realistically, you don't even attempt to.
This pistol was made between 1935-41. Please state the condition of the pistol to get and estimate of value.
see the link below for the Owners manual.
Try e-gunparts.com
See the Link Below and locate the owners manual for your airgun.
The Benjamin 250 is one of three pistols that make up the 250 line of air guns. Here is how they break down: 250 is a .175 BB pistol 252 is a .22 caliber pellet pistol 257 is a .177 caliber pistol. The problem is finding .175 BB's today most all BB are .177 caliber. I've heard that BB are still .175 only the caliber of the barrel has moved up to .177 to accommodate pellets. I suggest you just try one.
Depends on how bad someone wants it. Check the on line auctions to see what they bring. Just because someone asks a price, doesn't mean they will get it. Range from 10-1000 USD
The C-11 shoots .177 Caliber BB's not pellets