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
About 1000 fps for a pre-charged pneumatic, such as the Evanix.
You are saying both "Pellet Gun" and "Air Rifle in the same question." If it was a rifle it would most likely fall to the "AIR FORCE CONDOR" at over 1400 FPS, using a .177 barrel. (It has 12 different barrels that fit the rifle) Pellet guns are not as powerful as rifles. The EVANIX HUNTING MASTER fires a .22 cal pellet at 1000 FPS. The Fastest .177 air pistol that I know of is the Crosman 1720T Target pistol that is rated at 750 FPS. By the time I answer this there may be one faster Don't confuse speed with accuracy. Olympic class air pistols like the "Feinwerkbau P44 Match pistol" only fires at 508 FPS but is dead accurate and only cost $1,696 dollars.
The highest velocity of an airgun is that of Evanix AR6 pistol which is 1000 fps.
Air guns and rifles are rated by their FPS (FEET PER SECOND) they shoot at different speeds depending on the model. An example is a Daisy Red Ryder that shoots at 350 FPS but a Benjamin Marauder fires a .177 pellet at 1100 FPS. The slowest pellet gun I know of is the Marksman model 1010 that fires at 250 FPS.
It depends on which model you are asking about. But the air pistol P99 is rated at 360 FPS
around 500fps sometimes more
Rodents
The Eclipse came in 3 different calibers. .177@925 FPS - .22@710 FPS - .25@620 FPS. It was mfg between 1990 & 1996
200 Feet Per Second (FPS)
any air rifle that fires a .177 pellet over 600 FPS should be sufficient
For an air/piston powered .177 BB gun - anything less than 200 feet per second (fps) For a CO2 powered BB gun - anything less than 300 fps. For an "AIR SOFT" gun - anything less than 150 fps.