Best economical air gun for popping rats?

[garmic]

My QB57 .22 at about 15yds, one shot in the head. Rats are smart and fast and I had to stalk that guy for a couple weeks before I figured out how to sneak up on him.

 

[handofzeus]

Federal .22 cal birdshot in a small rifle. Be sure to wear glasses. That stuff is low velocity and riccochets off anything!

 

[mbogo3]

Fed birdshot works well on pigeons in enclosed spaces/attics as well.....mind you so did my HW80K .22 with a flashlight...Harold

 

[johnl]

A 450-499 fps pellet gun sound good. The local cats must be well fed and lazy, now if I can only get my neighbour to move his compost pile.......Thanks for the tips gents.

 

[can14]

Use science to deal with your problem. 1 large can of yeast 1 jar of peanut 1 plate of water and a few slices of bread. cover bread slice with peanut butter and cover with yeast.
Put out where the rats are and wait. the yeast and water will kill them!!! They blow up!