ORIGINAL: WolfWithBow
A BB gun is more effective against Squirrels. I use to shoot my pellet gun at Squirrels all the time and it just bounced right off them. A BB gun is more powerful, use that.
It depends on what model of pellet/BB gun you're comparing . I have seen BB guns could easily kill a squirrel,but they're not very effective at long ranges and not very accurate. What is themodel of the pellet gun you own?
For squirrel hunting, I would have tochoose my powerline pellet gun. Fast and accurate.