An importer was denied by foreign affairs whom asked them to consult RCMP.
The result was grim, least to say. Here a few links:
http://calibremag.ca/rcmp-prohibit-50-beowulf-magazines/
I can't post the link from the forum but here is an extract:
".50 Beowulf Magazine Classification Update
As some of you know we were declined an IIC for the Alexander Arms .50 Beowulf magazines earlier this year. Foreign Affair Canada said they would not issue the IIC due to the controversy surrounding these magazines and asked that we get clarification on the matter from the RCMP. I then wrote to the RCMP asking for said clarification back in May and just now received their response. The following is a direct quote for the letter we received.
The 50 Beowulf Magazine
In the case of AR platform rifles chambered for 50 Beowulf calibre, the magazine is adapted from the original 5.56x45 NATO version of the magazine, generally by one or more of the following: widening the space between the magazine lips, changing the angle of the magazine lips and changing the feed angle of the magazine follower. The adaptations more efficiently feed the much larger diameter 50 Beowulf calibre cartridge. However, the original ability to contain and feed 5.56x45 mm NATO cartridges has not been deleted and the magazines remain serviceable for that purpose.
The 50 Beowulf cartridge is centrefire and the AR platform rifles which use that calibre are semiautomatic. Thus, cartridge magazines for 50 Beowulf calibre firearms are prohibited if more than five 50 Beowulf cartridges can be contained in the magazine (subparagraph ii, as above).
Magazines for the AR platform which contain four or five 50 Beowulf calibre cartridges present a more complicated situation. Such magazines will generally contain 11 and 14 cartridges respectively of 5.56x45 mm NATO (or 223 Remington) calibre. Since the 50 Beowulf calibre magazines are adapted from the original 5.56x45 mm NATO design and the ability of the magazine to perform as originally designed has not been compromised by the adaptation, such magazines are prohibited if they contain more than five 5.56x45 mm NATO cartridges. The magazines are in effect dual calibre magazines and will be prohibited if they exceed five shots capacity of either calibre.
Magazines have recently been manufactured in, or imported into Canada bearing markings suggesting they are exclusively designed for 50 Beowulf ammunition, and at four or five shot capacity, are non-prohibited magazines. This is simply not the case. All magazines for 50 Beowulf calibre AR platform firearms presently on the Canadian market are prohibited devices.
AR Platform Upper Receivers
You had also asked about 50 Beowulf calibre AR upper receivers. Your understanding is correct that they are not prohibited.
Yours Sincerely,
Manager,
Specialized Firearms Support Services
Firearms Investigative and Enforcement Support Services Directorate
Canadian Firearms Program
Specialized Policing Services
I hate to be the bearer of such bad news, but with that said, it is clear that many Canadian shooters and dealers are in possession of prohibited devices and are being lead to believe that such is not the case, so be aware."
To find the link, copy and paste this in your google search:
Beowulf-Magazine-Classification-Update
It will be the top item that pops up in your search.
I would make 100% sure guys.....this is the kind of bs that gets us all in trouble!
Perhaps I am miss understanding it all, but if they have changed Bulletin #72, then it would be a good deed to let this info out and let shooters decide or take the risk or themselves.
Here is what one guy is saying on another forum:
"Nope. They are saying that the magazine is designed for two calibres, so as per the rule the bulletin attempts to explain, if it is designed for two calibres, it will be limited to 5 rounds of the smaller calibre.
They are claiming that the dual feeding capability isn't a happy random occurrence, and that the mags were designed to feed both calibres. Hence why they say it is limited to 5 rounds of 223/556."
Proper interpretation is welcomed to clarify some more.