Montana gun law

There's just one small problem with this.  "States rights", wasn't there a small group of states that tried that ploy back around 1861?  The last I heard it didn't work then, why would you think it would work now?  Look at the states that have "legalized" pot, the feds still enforces the federal laws in those states.  Do you really think the feds will let something like this MT firearms/munitions law stand?  Don't get me wrong.  I'd like nothing better than see the states take back power from the federal government that the feds have no legal right to assume.  But this monster is too big now and no longer recognizes the limits placed on it by the Constitution.  After all, that piece of paper is a "living" document that can be interpreted to mean whatever you want it to mean.

A SC case said a farmer growing wheat on his own farm for his own use was engaged in interstate commerce even if the wheat was used only for feed for his own livestock and for food for his own family.  The ruling was based on the fact that the amount of wheat grown (or not grown) on his farm could impact the production and sale of wheat in other states.  In other words, if he didn't grow the wheat on his own farm he would have to buy the wheat from someone else in order to meet his requirements.  That wheat he would have to buy if he didn't grow his own wheat "could" be grown in another state; therefore the production of wheat on his own farm for his own use is interstate commerce and is subject to federal laws.

Does anyone REALLY think Montana's law stands a chance?