Please don't perpetuate that way of thinking, it's one of the main reasons rights of all gun owners are already in such bad shape.
That said, you can not legally hunt anywhere, at least not that I know of, with an "assault rifle". The use of the term "assault rifle" has been so perverted by the media that it now applies to any rifle with a pistol grip, high capacity magazine, or any of a myriad of other cosmetic features the anti gun crowd may choose to include in their rants.
A true assault rifle is going to have the capability of full automatic, or at least a select fire/ burst capacity. In other words more than one bullet for every trigger pull. What it's not is a rifle that is nothing but a semiautomatic, even though it may have a pistol grip, etc. Otherwise it's is just like millions of others that have nothing but a plain old wood, or composite stock, and have been in gun cabinets for a hundred years.
Think about it, a semi auto AK style rifle is nothing but a .308 cartridge and is good for a lot of different game. Look at the links below. One is for a Saiga brand rifle with a standard type stock you'd find on most hunting guns, the other is another brand with the more common AK style stock. Both are the same caliber, and basically the same gun, just a different appearance.
The last link is to Impact guns. There you can see a standard Winchester .308 "hunting" rifle, as well as an M&P AR style .308 right beside it. Again, same caliber, just a different appearance.
Ultimately just about ever caliber, and style of rifle out there nowdays was derived from a military style rifle. Heck the old M14 is a direct like to the old time mini 14 and Mini 30 from Ruger. Until people started putting hand grip style stocks on them they were nothing more than a standard semi auto rifle. Now, according to some, they are all of a sudden "assault rifles" because someone changes the stock, and their appearance.
So, please, don't keep perpetuating the myth that a rifles appearance somehow makes it one of the "evil" "assault rifles". Doing so does nothing but give the anti gun crowd more steam for their campaign....and they really don't care whether your rifle is an "assault" rifle, or your Grandfathers prized deer gun. Ultimately they want to take them all.........Just saying......
Saiga
standard AK
Winchester .308 and AR style .308