Do send a picture to Crosman and see what they say. Piranha card for.22 holding .177 hollow points. There will probably be an excuse, but maybe some extra pellets as a "I'm sorry" gift.
Looks like they did a packaging run of Piranha's and switched to .177 hollows, but a Piranha card or two didn't get cleared out of the packaging equipment. Innocent mistake, probably happens more than we think, but still, the packaging ought to be right!
Or, just keep it like a mint mistake coin. Value is in the mistake, not the contents.