This fox squirrel got nailed with a 25 Predator (distance 25 yards), using 25 Marauder. This nutter was running up and down a large oak tree, chasing another nutter. That's the best because, when they are playing, nutters seem to pay less attention to their surroundings. The nutter was knocked out of the tree, hit the ground with a thud, and did the death dance for 3-4 seconds.
Entrance wound in the left ear.
Exit wound. Checking out the bulging globe.
I have noticed that, with head shots, the 25 Predators keep on sailing. Probably because there's so little tissue for the pellet to traverse. But, for body shots, the Predators don't pass completely through.