I don't think there is a supplier in Canada, however those loads are easy to duplicate for someone who reloads. They are heavy loads with heavy for caliber, flat nose cast bullets, alot of people on this sight reload these types of loads for their .444s, .44s, 45/70s,.45 Colts, etc. You would also save alot of money as these are expensive factory loads. If you could find the Buffalo Bore ammo, the cost would preclude any kind of practise use.