Note ORIGINALLY designed. The BC 10/22 mags were designed and on the market before the Charger was even released, so there's no question as to the legality of them, and any newly designed magazines will be unregulated as long as they are not marked "for Ruger 10/22 Charger".
Read that clause again carefully. The phrase "originally designed" refers to the cartridge for which the magazines were designed, not the gun. In other words, the magazine can't hold more than 10 of, say, 9mm if it was originally designed to hold 9mm. If it was designed to hold .40 but 13 9mm will fit it, that's OK.
The part you bolded is not what is the concern here, it is the section that reads "that is designed or manufactured for use in a semi-automatic handgun that is commonly available in Canada" that we are concerned with here. Since the BC mags were neither designed nor manufactured for use in a semi-automatic pistol, the restriction of 10 rounds does not apply to them.
Yes, I agree that is the critical clause. Trouble is, there's nothing there, the way I read it, that exempts the magazine from prohibition just because it appeared before the handgun.
When a handgun is released that will accept an already available magazine you can probably make the case that it was not "designed" for the handgun. (Unlike the 1522 case where the same manufacturer designed the rifle, the pistol and the magazine.)
However, the clause includes the phrase "
or manufactured for use" in a hand gun. That's why the Chiappa issue is important. If only the Chiappa mag is prohibited, then it's pretty much the same situation as the 1522. However, if the ruling extends to third party AR conversion mags that were
designed before the existence of any AR pistol, are not marketed as pistol mags and do not say "pistol" on them, then the only reason they could be prohibited is that they are deemed "manufactured for use" in a hand gun (basically, just because the fit.)
In that case I don't see why high cap mags that fit Ruger Chargers would not fall into the same prohibited category. Carrying this to its logical conclusion, any high cap mag would be prohibited if and when a handgun appeared that would accept it. (I hope I'm being paranoid here and would be grateful if you could point out any flaws in my logic.)
As long as the RCMP is running the show, nothing is safe... the real question is "what do we have to fight them with in court". The answer being lots, if it's in regard to the BC 10/22 mags. The reason why the mags for the S&W and the Chiappa were classified the way they were was because (at least for the S&W) they were marketed as being both a rifle and pistol mag.
Too true, about the RCMP. Changing the regs would be a much better solution than fighting the interpretation of the existing regs in court. Court would be really expensive and a loss would lock in the existing system forever.
BTW, were you aware of the existence of this Chiappa "pistol?" I never heard of it before and don't see it on their web site. At the very least it is not "commonly available in Canada" as the reg requires.