Guns chambered in .22s .22l .22lr are not antique status in Canada no matter how old it is. Prophet River has imported many rifles for me and have provided me with good service. In Oct they charged me $250 to import. $30 for shipping. plus GST on the original purchase price and for the importing. By self clearing you will be saving about $300. For your reference here are the requirements for antique status in Canada.
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
Rifles manufactured before 1898 with the following characteristics:
able to discharge only rim-fire cartridges, other than:
.22 Calibre Short
.22 Calibre Long
.22 Calibre Long Rifle cartridges
able to discharge centre-fire cartridges (whether with a smooth or rifled bore), have a bore diameter of 8.3 mm or greater, measured from land to land in the case of a rifled bore, with the exception of a repeating firearm fed by any type of cartridge magazine
Handguns manufactured before 1898 with the following characteristics:
able to discharge only rim-fire cartridges, other than:
.22 Calibre Short
.22 Calibre Long
.22 Calibre Long Rifle
able to discharge centre-fire cartridges, other than a handgun designed or adapted to discharge:
.32 Short Colt
.32 Long Colt
.32 Smith and Wesson
.32 Smith and Wesson Long
.32-20 Winchester
.38 Smith and Wesson
.38 Short Colt
.38 Long Colt
.38-40 Winchester
.44-40 Winchester
.45 Colt cartridges
As you can see, contrary to popular belief, it has nothing to do with currently produced ammunition. There are many calibers not on the nogo caliber list that are currently manufactured. I hope this helps.