Skeeter, I had checked with Canadian Customs and you can bring back 16 lbs of powder but it’s not the Canadian Customs you have to worry about. It’s on the states side as Big Guy mentioned.
I have ordered some Conetrol base and rings and had no problem receiving them in the mail, but was told that they can be confiscated on state side because it’s being used on a firearm.
Every time I purchased from Cabela’s I never had a problem and they knew I came from Canada because they always asked for my phone number and acknowledged that I was from Winnipeg. Now I’m not saying that I wont purchase reloading components from the states but will be very careful coming home and will cross my fingers that I don’t get pulled over...