My local Wally World in San Jose, CA has Made in Spain Crosman Piranha .177 in stock for $7. IIRC I purchased the old made in USA Piranha for just under $12 a few months ago. They had a empty spot for .22 Piranha's for $11.66.
Ya, they were tight fit in my .177 stuff. I felt a little too tight. Really had to mash them in the leade to fully seat them ..In michigan walmarts, 177 American piranahs have always been around $7 like the hollow points. I've only bought 1 tin of piranahs because they shoot horribly in my guns and some are so large they've got stuck in the barrel. Never had any other pellet type do that.