The big guns aint nothing compared to an itty bitty 2" .357 S&W Scandium J-Frame.
Without a muzzle extension or suppressor, it depends on if the stock is open or closed.
“The enemy is anybody who's going to get you killed, no matter which side he is on.” ― Joseph Heller, Catch-22
Beware of associating with "Cheap" Squirrels. They tend to be very narrow minded, hypocritical, and will gag you if you question or disagree.