When I wanted to get some 2 1/2" gamebores in Alberta I called all the dealers and nobody wanted to bring them in. I got lame excuses from some that they had some on order but they didn't know when they would be in. I called Kent and there was plenty of stock and no orders were pending. I called Russel Sports and told them the product number of the shells I wanted and they ordered a flat and shipped it to me. Not cheap, but at least I got some shells. You could try Dave Henry, the gunsmith in Bentley, AB. He usually keeps some in stock, but I don't know if he would have 16 gauge.