ORIGINAL: skeeter 7MM
Linkwhich includes the form you need to fill out for bringing your hunting rifle/gun-non restricted (non-resident firearm declaration).
http://www.rcmp-grc.gc.ca/cfp-pcaf/information/visit/index-eng.htm
As far as ammo you can bring itwith you.. The amount and logisticsfor transporting,etcI'm not 100% sure on anymore. You can contact the above for this info &/oryour outfitter. I would also contact your airline if flying about their policies for storage of ammo.
Customs told me that the only requirement was the registration of your
NON RESTRICTED FIREARMS & your permit to posses the said firearms (I believe there is a small fee for this possession license. There is no restriction on ammo coming into Canada for hunting, but remember that if you are bring in extreem amount of ammo into Canada, they might deem it as not for hunting purposes then cause you a little grief. IF you keep the amount reasonable, there will be no problem with customs. Where you might come across some problems is with an Airline as most airlines class Ammo as an Explosive Material. Check with them and follow their instructions and you should not have any problem.
When you fill out the customs forms for your guns (prior to your trip) ask them if you should include the ammo. I imagine that would be the best way. I have not hunted Canada yet but the forms are merely to prove that you owned the guns prior to entering Canada so that you won't be hit with the excise taxes when leaving. Same should apply to the ammo.
This might have been correct in the old days, this is not the case any more. All guns must be registered in Canada, Restricted and non-restricted. You must also have in your possession a PAL (possession acquisition licence) or a POL (Possession Only licence) to have a firearm in your control while in Canada. You can obtain one at Customs when you cross the boarder (one year) or you can preapply for a 5 year licence which a little more money, but if you plan to hunt in Canada more often, it might be worth your while for the 5 year licence. In any case, it is best to have all the papper work sortede out before hand and ready for customs when you get there.
Good luck and I hope this helps.