The 10/22 was the first "real" firearm I ever owned. It was in stock configuration (still is), I have never had any issues with it and was a lot of fun with Butler Creek mags (until they became prohib). Been rock solid reliable for me and will always have a sentimental connection.
Older Butler Creek mags that were manufactured prior to the advent of the Charger pistol are only prohibited by RCMP opinion. Literally impossible for them to have been designed for a pistol that didn't exist yet. Apparently there was an internal bulletin basically saying only to charge folk for having them if they're facing other charges or something along those lines, if I'm recalling correctly.