I'm not in the Toronto area but have plenty of experience with the venerable RFI 2A/2A1 caliber 7.62 rifle. I like to think of it as the proverbial "Barney Fife " rifle. Here's your rifle and here's one cartridge, please keep it in your pocket!

You can tweak the feed lips on the magazine to get it to feed properly. Make sure the extractor spring is strong as they never really had a good system of ejection to start with.