The best air rifle definition differs from person to person based on their individual choice in addition to some features which are universal. However, here are some kinds of air rifles which are discussed.
There are the pneumatic pump air rifles these are powered by Carbon di-oxide or they are powered by a pre-charged pneumatic or even a spring piston. This is because the power source can be changed as per the likes and needs of the user. These usually come with accessory rails and parts like the camera, scope, flashlights and lasers can be mounted on it.
These are considered the best air rifle as they are found to be very powerful as well as accurate and are not only safe as well as easy to use, but these come in various child friendly models too. These are easy to carry around as they are light. However, on the flip side, these do not dampen noise and are not very sturdy. However, these are usable for target shooting, plinking and hunting of small game.
The .177 caliber air rifles with scope can perform well under even the most extreme of climatic conditions as it has a stock which is synthetic and very durable as well as it has a barrel which is made of high tech steel. This usually has a spring piston and is both accurate enough and powerful enough for most users. On the negative side though, this when the user uses PBA pellets, it can be very loud and the barrel of this usually requires regular cleaning. There are also issues which are found with regards focusing it.
However, these are very affordable and it is good for those that like to hunt small game as well as those who want to use it for target practice.