That it is for sure. Those who still imagine that a .22 is only fit for killing squirrels need to see a demo of the Stinger. I guarantee one round in the vitals will make Shrek stop and think.
I’m not sure a lot of people know just what damage a CCI Stinger can do. It is wicked. In my opinion it is the best .22LR round there is, and in some circumstances it is more destructive than a .22WMR. On varmints and small game I usually go for a head shot with a CCI Stinger, because a shot in the vitals can destroy too much meat.