Just my experience but:
I got 300 rounds from Canadaammo a few weeks ago. I've gone through one full box and averaged about 15-20 % failure to fire. They all went on the second (in one case third) strike. As a note, this revolver has never had issues and the very same day I shot 200 reloads with zero issues, so I suspect the primers on these are harder than standard or something. Anybody have any theories/suggestions? I stopped shooting it after the first box because, being a revolver, I can't just cycle the action and keep shooting with only a "firecracker" at my feet as a risk. If I keep shooting and it cooks off while not lined up with the barrel, it'll be one hell of a kaBOOM. The only other option is to wait 60 seconds pointed downrange, but that gets pretty old pretty fast when it happens once per cylinder or more…
Not blaming Canadaammo themselves, but if others are having these issues, CanAm should be made aware that their suppliers are producing unreliable junk.