Nebraska has a magazine size limit for deer hunting also.
It's intention is not to protect the deer herd though. It's to protect other people from the Rambo wannabes that walk out with 30 round clips and keep blasting away without any idea of where the rounds are headed.
It's also a state law, not a federal law. Tremendous difference in jurisdiction and constitutional authority between the two. I believe that the feds have only ever passed laws on migratory birds since they only have authority over interstate issues.
