Little late to this party but....
The Criminal Code defines an antique firearm as either:
(a) any firearm manufactured before 1898 that was not designed to discharge rim-fire or centre-fire ammunition and that has not been redesigned to discharge such ammunition, or
(b) any firearm that is prescribed to be an antique firearm
Criminal Code
There fore if you believe your hand gun that was made before 1898 and shots rimfire or centre fire ammo is, its not, you need to have an Rpal and or prohib statis.