Crosman says that one of its air rifles firing a 0.22 caliber bullet is ideal for killing large pests, such as jackrabbits and woodchucks. The smaller-caliber air rifles (0.177) can kill squirrels, small birds and rabbits.
The very large-caliber air rifles (0.25 and 0.357) can kill coyotes and even large animals, such as deer, if the hunter can get close enough to the prey before taking the shot. The accurate range of an airgun depends on the power with which it fires as well as the caliber. An 800 fps 0.25 airgun is accurate at 20 yards, but an 800 fps 0.22 airgun can be accurate as far out as 30 or 35 yards.