Frisbees and boomerangs in flight can certainly turn around way more than 180°. Or with sufficient wind, any projectile can turn 180° and come back the way it

Frisbees and boomerangs in flight can certainly turn around way more than 180°. Or with sufficient wind, any projectile can turn 180° and come back the way it came. I'd doubt a spinning cannonball would actually manage that, but it probably only takes a curve of 90° or even just 45° for some sensationalist journalist to exaggerate that into "spiraling back".