"L" Dawg,
You will need to stop at the U.S. side and begin the paperwork to register all the guns you are taking into Canada to hunt with. Then to enter the country of Canada, you take that paperwork to the "other" side, pay your money,($50.00 per rifle) get an interview etc.. Make sure you DO NOT have anything to do with a handgun with you, not even a bullet.. They can confiscate your truck and everything with it if you are trying to cross with any type of handgun. There is NO sense of humor here. Don't joke around about it.
Then to get back into the good old U. S., you need a birth certificate or a passport and some photo I.D. would be a good idea also. You can even bring back meat now, they have relaxed the "Mad Cow" restrictions a little..
What and when are you hunting.. It is a great time if you do it right.. Good Luck.. KattKrapp