Another vote for something that pokes. It doesn't have to be a broadhead, but broadheads are okay. A field point with something behind it or a screw or something that will penetrate is important for squirrels. They are one of my favorites critters to hunt, but they are TOUGH!!! I wouldn't recommend a blunt of any sort. They are fine of rabbits, doves, softer critters like that, but not so great for squirrel. Maybe if you got them right between you and a tree so they took the full force of the hit, but that's rare. They are awfully quick to jump and make a glancing blow too. Eons of dodging hawks and owls and other things that fly I guess.