Do you use a C02 or an air BB gun?

Neither .
Spring piston all the way .

i use a air bb gun, i wish i had a co2 to get those damn rabbits in the back yard. the bb gun i have is like 10 yrs old and i live in town so i cant really break out the .22. they keep getting in my moms garden

use a bow young_gun! thats what i did to the chipmunks that ate MY garden. it works trust me.... any way. i use an Air rifle. Gamo Youth Hunter 640.

Use to use C02, now its bow and other guns.

I Like CO2 Better But I Dont Use Lil Toy Guns Anymore

a bb gun for rabbits ??? arnt they a bit weak your problly just wonding them and if u want to use the .22 use the shorts there real quiet lol

Firearms aren't always legal .
I've taken many bunnies in the backyard with a Daisy 880 at ranges up to 30 yards , never had to shoot one twice when using lead pellets .

AIR!!! I have worn out my first air gun and recently cbought my second one, but have never wasted $$ on such things as CO2.

Air. Once a co2 starts to get weak it deprives the gun of killing power. With air 1500 shots later you still are hitting with the same force. Always has given me clean kills on everything from birds to a few groundhogs at close range. I'd go with AIR! just my 2cents.