Not trying to hijack the thread, but at least Iowa isn't calling it "Primitive". In Mississippi we have a primitive weapon season. A single shot rifle that is 35 cal or larger, and has an exposed hammer is considered primitive. So one can use a scoped 35 Whelen shooting 2800fps, but using an open sighted 30-30 during primitive weapon season can get you written up.
With that said, you can use whatever you want on private land.
I know, it's bizarro world. Since I only hunt private land it makes it easier, I just use my 6.5x47L all the time.