Raimey,
The Wolverine site was very confusing and when trying to get specific information, they kept sending me back to a loop. I think they only have one box (if any) in stock. What was very important was that is manufactured by Norma. If Norma does not have a USA website, surly they at least one large USA company representing them. You should bypass the whole Canadian laws problem and go through some form of USA Norma representation. In the process, don't ask for ammo, ask for bulk cases. If you have to order a minimum number of cases, others here might help, I know I would.
Mike