Maybe I am beating a dead horse. it is not 4 or 5.
It is 5 in the magazine.
I found this online.
http://www.albertaregulations.ca/hun...s/genregs.html
BIG GAME PROHIBITIONS
It is unlawful to
1.set out, use or employ any of the following items for the purpose of hunting big game:
•ammunition of less than .23 calibre,
•ammunition that contains non-expanding bullets,
•an auto-loading firearm that has the capacity to hold more than 5 cartridges in the magazine.
For the M1 Garand you would have to buy the En-Bloc clip that is limited to 5.