Answer from cfp-pcaf@rcmp-grc.gc.ca
I got a fast, and useless answer, I guess I will have to phone a technician. See below:
"** High Priority **
Thank you for your correspondence.
Following is the magazine capacity restrictions for all classes of
firearms as set out by the Criminal Code of Canada.
LONG GUNS
With one popular exception; all centerfire, semi-automatic long guns
have a magazine restriction of five shots. This includes both shotguns
and rifles. The exception to this rule is the M1 Garand, which has an
eight shot magazine. This exception is due to the internal, top-fed
magazine in the M1. It would not be feasible to require this magazine be
pinned, so an exception was created. Firearms that have a magazine
capacity greater than five rounds must have their magazine pinned or
altered to only allow five rounds (again with one exception, the M1
Garand).
This five shot restriction does not include pump, lever or bolt action
firearms. It also does not include rimfire ammunition.
Rimfire ammunition, for the most part, is more commonly known as 22 LR,
22 MAG and 17 HMR. There is no restriction on the number of shots a
firearm can have in these three caliber's.
HANDGUNS
Handguns have a magazine capacity limit of ten rounds. This includes
both centerfire and rimfire ammunition. Firearms that have a magazine
capacity greater than ten rounds must have their magazines pinned to
allow only ten rounds.
In summation:
Semi-automatic long guns: 5 Shots except the M1Garand and no shot
restrictions on 22LR, 22 Mag and 17 HMR.
Semi-automatic handguns: 10 shots, no exceptions!
If you have further questions, please contact our office at 1 800
731-4000 and request to speak with a firearms technician.
Sincerely..."