It is very much different in my state; my understanding is that such restrictions are only prevalent in states which are already overly-restrictive on such matters.
Iowa’s general restrictions are effectively that the caliber must be between .350 and .500 caliber barring the special population management season which additionally allows .223/5.56x45mm. That’s it.
The hunting season may come with additional restrictions, but they’re generally of the “primitive” aka bow/muzzle-loader, “long-gun”, etc. categories.