Below is info from Buffalo Arms. I don't think you would have problems getting shotgun brass sent to you. I have bought 12 gauge unprimed brass in the US and brought them back into Manitoba with no problem at the border. The customs guy even looked at them.
that may be so, but Rocky Mountain cartridge company said they cannot ship to me.
Davide
Black Powder Cartridge empty brass cases.
Due to federal regulations we cannot ship rifle and pistol brass outside of the U.S. unless they are shipped through our exporter. Shotgun brass is excluded from these regulations. If your order has rifle or pistol brass on it we will automaticly remove these from the order and ship the balance with out contacting you.
