If that were the case, then Transport Canada would have a record of a C-number being assigned to a particular airframe serial number. Some of the 505's on the production list have no C-numbers assigned at all. Others have C-numbers assigned that simply don't show up in the Transport Canada database. Look at the last one built, MSN301. The registration number assigned to it is C-GBUH, but Transport Canada shows no record of that registration. Or go back further, to MSN 224. That one is supposed to be C-GHFZ but it's not in Transport Canada's database either. (BTW, of the 65 model 505's with U.S. N-numbers, 13 of them are registered to Bell Helicopter. Quite the training fleet!) Curious.
So how many 505's has Bell actually sold? It's hard to figure out.