Types of air rifles?

[RedRiderF26]

I know there are pump rifles and break barrel rifles. What are the other types of air rifles and how do they work? Id like to know more cuz until a few weeks ago I didnt know any other types existed.

[BenjiHunter]

Here's something to read on the subject.
http://www.airgundepot.com/air-rifles-overview.html
http://www.straightshooters.com/basic-airgun-types.html
http://airrifleworld.com/types-of-air-rifles/

[Motorhead]

I know there are pump rifles and break barrel rifles. What are the other types of air rifles and how do they work? Id like to know more cuz until a few weeks ago I didnt know any other types existed.

You have Single Stroke Pneumatics
You have Gas Rams in Barrel break type guns in lieu of using a spring to drive piston.
You Have Co2 gas guns ( Co2 cartridge or bulk fill )
You have PCP guns ( Pre-Charged Pneumatic )

[Roadworthy]

I put together a little explanatory sheet for my neighbor who's interested in airguns.  It's attached.

[Kailua]

Pyramid Air has kind of categorized the different types of airguns.
https://www.pyramydair.com/air-guns/rifles
Also look down on the left column there is a list of usages.