Squirrels that have been shotgunned should be used in stews. Just the though of chomping down on shot makes the hair on my neck stand up.
I have buddy that uses #7.5 target 12s for everything. He has Rem 1100 and empties it every time he shoots at game. Squirrels are not killed with the shot. He puts so much weight under their hide they fall out of tree and break their neck.